Common Weakness Enumeration
CWE-824
Weakness AllowedAccess of Uninitialized Pointer
Abstraction: Base · Status: Incomplete
The product accesses or uses a pointer that has not been initialized.
If an attacker can influence the portion of uninitialized memory that is contained in the pointer, this weakness could be leveraged to execute code or perform other attacks.
Depending on memory layout, associated memory management behaviors, and product operation, the attacker might be able to influence the contents of the uninitialized pointer, thus gaining more fine-grained control of the memory location to be accessed.
Mapping guidance
This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.
Relationships and members
Modes of introduction
Implementation
Detection methods
Automated Static Analysis
Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)
Effectiveness: High
Automated Dynamic Analysis
Use tools that are integrated during compilation to insert runtime error-checking mechanisms related to memory safety errors, such as AddressSanitizer (ASan) for C/C++ [REF-1518].
Effectiveness: Moderate
Crafted inputs are necessary to reach the code containing the error, such as generated by fuzzers. Also, these tools may reduce performance, and they only report the error condition - not the original mistake that led to the error.
Notes
Maintenance
There are close relationships between incorrect pointer dereferences and other weaknesses related to buffer operations. There may not be sufficient community agreement regarding these relationships. Further study is needed to determine when these relationships are chains, composites, perspective/layering, or other types of relationships. As of September 2010, most of the relationships are being captured as chains.
Terminology
Many weaknesses related to pointer dereferences fall under the general term of "memory corruption" or "memory safety." As of September 2010, there is no commonly-used terminology that covers the lower-level variants.
Content history
Submission: CWE Content Team
· MITRE
· 2010-09-22
· CWE 1.10
Modification: CWE Content Team
· MITRE
· 2012-05-11
· CWE 2.2
updated References
Modification: CWE Content Team
· MITRE
· 2015-12-07
· CWE 2.9
updated Relationships
Modification: CWE Content Team
· MITRE
· 2020-02-24
· CWE 4.0
updated Relationships
Modification: CWE Content Team
· MITRE
· 2020-08-20
· CWE 4.2
updated Relationships
Modification: CWE Content Team
· MITRE
· 2020-12-10
· CWE 4.3
updated Relationships
Modification: CWE Content Team
· MITRE
· 2022-04-28
· CWE 4.7
updated Research_Gaps
Modification: CWE Content Team
· MITRE
· 2023-01-31
· CWE 4.10
updated Common_Consequences, Description
Modification: CWE Content Team
· MITRE
· 2023-04-27
· CWE 4.11
updated Detection_Factors, Relationships
Modification: CWE Content Team
· MITRE
· 2023-06-29
· CWE 4.12
updated Mapping_Notes
Modification: CWE Content Team
· MITRE
· 2024-07-16
· CWE 4.15
updated Observed_Examples
Modification: CWE Content Team
· MITRE
· 2025-04-03
· CWE 4.17
updated Applicable_Platforms, Observed_Examples
Modification: CWE Content Team
· MITRE
· 2025-09-09
· CWE 4.18
updated Affected_Resources, Functional_Areas
Modification: CWE Content Team
· MITRE
· 2025-12-11
· CWE 4.19
updated Applicable_Platforms, Detection_Factors, References, Time_of_Introduction, Weakness_Ordinalities
Modification: CWE Content Team
· MITRE
· 2026-10-28
· CWE 5.0
updated Common_Consequences, Description, Observed_Examples, References
484 vulnerabilities reference this CWE, most recent first.
CVE-2026-115327 (GCVE-0-2026-115327)
Vulnerability from cvelistv5 – Published: 2026-10-22 10:57 – Updated: 2026-10-29 02:10
VLAI
EPSS
VEX
Title
libyang through 6.4.13 Uninitialized Pointer Free in NETCONF RPC Parser
Summary
libyang through 6.4.13 contains an uninitialized pointer free vulnerability in lydxml_env_netconf_rpc() in src/parser_xml.c when parsing NETCONF rpc action envelopes. Peers with a NETCONF session can send an action element containing non-whitespace text via lyd_parse_op() to crash servers like netopeer2 or corrupt the heap.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 02:09 UTC
CWE
- CWE-824 - Access of Uninitialized Pointer
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/CESNET/libyang/issues/2595 | issue-tracking |
| https://github.com/CESNET/libyang/commit/927fce90… | patch |
| https://github.com/CESNET/libyang/blob/v6.4.13/sr… | technical-description |
| https://github.com/CESNET/libyang/blob/v6.4.13/sr… | technical-description |
| https://hackmd.io/@haindpwn/libyang-netconf-rpc-e… | technical-description |
| https://github.com/CESNET/libyang | product |
| https://www.vulncheck.com/advisories/libyang-thro… | third-party-advisory |
| https://hackmd.io/@haindpwn/cve-2026-115327-libya… | exploit |
Impacted products
Date Public
2026-10-16 00:00
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CVE-2026-110603 (GCVE-0-2026-110603)
Vulnerability from cvelistv5 – Published: 2026-10-14 14:16 – Updated: 2026-10-16 17:16
VLAI
EPSS
VEX
Title
LASzip through 3.5.0 Invalid Free via Truncated VLR Header in laszip_read_header
Summary
LASzip through 3.5.0 contains an invalid free vulnerability in laszip_read_header() that allows attackers to free uninitialized heap pointers via truncated variable length record data. Attackers can supply a crafted LAS/LAZ file with an inflated VLR count that, when opened and destroyed through the C API, crashes the process and corrupts the heap.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 16:31 UTC
CWE
- CWE-824 - Access of Uninitialized Pointer
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/LASzip/LASzip/commit/c9bfd3e68… | patch |
| https://github.com/LASzip/LASzip/blob/3.5.0/src/l… | technical-description |
| https://github.com/LASzip/LASzip/blob/3.5.0/src/l… | technical-description |
| https://hackmd.io/@haind-pwn/laszip-vlr-uninitial… | third-party-advisory |
| https://www.vulncheck.com/advisories/laszip-throu… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| rapidlasso | LASzip |
Affected:
0 , ≤ 3.5.0
(semver)
|
Date Public
2026-10-14 00:00
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CVE-2026-110602 (GCVE-0-2026-110602)
Vulnerability from cvelistv5 – Published: 2026-10-14 14:16 – Updated: 2026-10-14 18:01
VLAI
EPSS
VEX
Title
libmspack through 0.11alpha Uninitialized Pointer Free via kwajd_open Error Path
Summary
libmspack through 0.11alpha contains an uninitialized pointer free vulnerability in kwajd_open() in mspack/kwajd.c that frees unzeroed filename and extra pointers on header read errors. Attackers can supply a truncated, empty, or wrong-signature KWAJ file to crash the process or obtain an arbitrary-free memory corruption primitive.
Severity
6.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 17:59 UTC
CWE
- CWE-824 - Access of Uninitialized Pointer
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/kyz/libmspack/commit/4d8685041… | patch |
| https://github.com/kyz/libmspack/blob/v0.11alpha/… | technical-description |
| https://hackmd.io/@haind-pwn/libmspack-kwaj-unini… | third-party-advisory |
| https://www.vulncheck.com/advisories/libmspack-th… | third-party-advisory |
Impacted products
Date Public
2026-10-14 00:00
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CVE-2026-109619 (GCVE-0-2026-109619)
Vulnerability from cvelistv5 – Published: 2026-10-21 13:54 – Updated: 2026-11-05 18:17
VLAI
EPSS
VEX
Title
RCE via stale global state
Summary
PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subsequent requests may read or branch on this stale state before it is fully initialized. Multiple strategies can trigger this condition and produce remote code execution (RCE).
Severity
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-21 00:00 UTC
CWE
Assigner
References
19 references
Impacted products
108 products
| Vendor | Product | Version | |
|---|---|---|---|
| PHP Group | PHP |
Affected:
8.2.* , < 8.2.35
(semver)
Affected: 8.3.* , < 8.3.36 (semver) Affected: 8.4.* , < 8.4.27 (semver) Affected: 8.5.* , < 8.5.12 (semver) |
|
| Siemens | AMIS TS |
Affected:
0 , < *
(custom)
|
|
| Siemens | AX4 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | blueplanet 360 NX3 M6 WM OD IISX |
Affected:
0 , < *
(custom)
|
|
| Siemens | blueplanet 360 NX3 M6 WM OD IISX - S |
Affected:
0 , < *
(custom)
|
|
| Siemens | Building X |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | CADRA |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Call stations |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Capital |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Chargesight |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Climatix Cloud IC |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Climatix Devices |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Connect Insights |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Connect X200 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Connect X300 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Connect X500 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | cRSP |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Depotfinity |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Designcenter |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Designcenter X |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Designcenter X Essentials |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo CC |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo DXR2 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo DXR3 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo Optic |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo PXC3 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo PXC4 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo PXC5 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo PXC7 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | DFMExpress |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Energy Engage V2.0SP9 |
Affected:
0 , < *
(custom)
|
|
| Siemens | Energy Engage V3.1SP1 |
Affected:
0 , < *
(custom)
|
|
| Siemens | Energy Management System |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Enlighted RTLS |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Enlighted Space |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Heliox Flex Pro |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Heliox H60 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Heliox Rapid |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | HyperLynx |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Insights Hub |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Local Monitoring bt-monitoring-vm |
Affected:
0 , < V20261103
(custom)
|
|
| Siemens | Navigator E&S |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Novigo VANSYS |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Novigo VANSYS core |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Connect Electronics |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Connect MOM |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Execution Core |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Execution Discrete |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Execution Foundation |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Execution Pharma |
Unaffected:
0 , < *
(custom)
|
50 of 108 products shown. All of them on the page of CVE-2026-109619.
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CVE-2026-109618 (GCVE-0-2026-109618)
Vulnerability from cvelistv5 – Published: 2026-10-21 13:48 – Updated: 2026-11-05 18:17
VLAI
EPSS
VEX
Title
RCE via OOM corruption
Summary
PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE).
Severity
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-21 00:00 UTC
CWE
Assigner
References
11 references
Impacted products
107 products
| Vendor | Product | Version | |
|---|---|---|---|
| PHP Group | PHP |
Affected:
8.2.* , < 8.2.35
(semver)
Affected: 8.3.* , < 8.3.36 (semver) Affected: 8.4.* , < 8.4.27 (semver) Affected: 8.5.* , < 8.5.12 (semver) |
|
| Siemens | AMIS TS |
Affected:
0 , < *
(custom)
|
|
| Siemens | AX4 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | blueplanet 360 NX3 M6 WM OD IISX |
Affected:
0 , < *
(custom)
|
|
| Siemens | blueplanet 360 NX3 M6 WM OD IISX - S |
Affected:
0 , < *
(custom)
|
|
| Siemens | Building X |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | CADRA |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Call stations |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Capital |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Chargesight |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Climatix Cloud IC |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Climatix Devices |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Connect Insights |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Connect X200 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Connect X300 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Connect X500 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | cRSP |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Depotfinity |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Designcenter |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Designcenter X |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Designcenter X Essentials |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo CC |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo DXR2 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo DXR3 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo Optic |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo PXC3 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo PXC4 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo PXC5 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Desigo PXC7 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | DFMExpress |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Energy Engage V2.0SP9 |
Affected:
0 , < *
(custom)
|
|
| Siemens | Energy Engage V3.1SP1 |
Affected:
0 , < *
(custom)
|
|
| Siemens | Energy Management System |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Enlighted RTLS |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Enlighted Space |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Heliox Flex Pro |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Heliox H60 |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Heliox Rapid |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | HyperLynx |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Insights Hub |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Local Monitoring bt-monitoring-vm |
Affected:
0 , < V20261103
(custom)
|
|
| Siemens | Navigator E&S |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Novigo VANSYS |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Novigo VANSYS core |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Connect Electronics |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Connect MOM |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Execution Core |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Execution Discrete |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Execution Foundation |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | Opcenter Execution Pharma |
Unaffected:
0 , < *
(custom)
|
50 of 107 products shown. All of them on the page of CVE-2026-109618.
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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"vendor": "Siemens",
"versions": [
{
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]
},
{
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"vendor": "Siemens",
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{
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]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
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{
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"status": "unaffected",
"version": "0",
"versionType": "custom"
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},
{
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"vendor": "Siemens",
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{
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"status": "unaffected",
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]
},
{
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"vendor": "Siemens",
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{
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"status": "unaffected",
"version": "0",
"versionType": "custom"
}
]
},
{
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{
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"status": "unaffected",
"version": "0",
"versionType": "custom"
}
]
},
{
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"vendor": "Siemens",
"versions": [
{
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"status": "unaffected",
"version": "0",
"versionType": "custom"
}
]
},
{
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"vendor": "Siemens",
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{
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"status": "unaffected",
"version": "0",
"versionType": "custom"
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]
},
{
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"vendor": "Siemens",
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"status": "unaffected",
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}
]
},
{
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"vendor": "Siemens",
"versions": [
{
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"status": "unaffected",
"version": "0",
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]
},
{
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"product": "Opcenter Intra Plant Logistics",
"vendor": "Siemens",
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{
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"status": "unaffected",
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]
},
{
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{
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]
},
{
"defaultStatus": "unknown",
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{
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]
},
{
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"versions": [
{
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"status": "unaffected",
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]
},
{
"defaultStatus": "unknown",
"product": "PACE-Design",
"vendor": "Siemens",
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{
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"status": "unaffected",
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}
]
},
{
"defaultStatus": "unknown",
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{
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"status": "unaffected",
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]
},
{
"defaultStatus": "unknown",
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]
},
{
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]
},
{
"defaultStatus": "unknown",
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]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
{
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"status": "unaffected",
"version": "0",
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}
]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
{
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"status": "unaffected",
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}
]
},
{
"defaultStatus": "unknown",
"product": "Pathway to Learning Engineering",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "Polarion",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "QuadView",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM APE1808",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "Sicharge D",
"vendor": "Siemens",
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{
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"status": "unaffected",
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}
]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
{
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"status": "unaffected",
"version": "0",
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}
]
},
{
"defaultStatus": "unknown",
"product": "SICHARGE FLEX",
"vendor": "Siemens",
"versions": [
{
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]
},
{
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CVE-2026-94018 (GCVE-0-2026-94018)
Vulnerability from cvelistv5 – Published: 2026-10-20 15:10 – Updated: 2026-10-20 17:03
VLAI
EPSS
VEX
Title
NetX Duo Web HTTP server releases an uninitialized packet pointer on the PUT Content-Length underflow path
Summary
The Web add-on's HTTP server dereferences and releases an uninitialized pointer when it detects a `Content-Length` underflow while processing a `PUT` request. The condition is reachable by an unauthenticated remote client with a single malformed request.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 17:03 UTC
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX - NetX Duo |
Affected:
6.4.2 , ≤ 6.5.1.202602
(semver)
Unaffected: 6.5.2.202603 |
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CVE-2026-90586 (GCVE-0-2026-90586)
Vulnerability from cvelistv5 – Published: 2026-11-09 22:03 – Updated: 2026-11-12 17:18
VLAI
EPSS
VEX
Title
Xtensa MMU userspace: uninitialized thread page-table pointer leads to out-of-bounds supervisor-mode writes
Summary
The Xtensa MMU userspace port never initialized the per-thread page-table pointer thread->arch.ptables during thread setup, while arch_mem_domain_thread_add() in arch/xtensa/core/ptables.c uses a non-NULL value of that field as its "this thread is migrating from another memory domain" predicate. For a thread whose struct k_thread backing memory is not zeroed, the field holds stale data and the kernel takes the migration branch, passing that stale value to reset_region() as the base of a level-1 page table. The equivalent field on x86 is explicitly cleared in z_x86_userspace_prepare_thread() for exactly this reason; the Xtensa port adopted the predicate without the initialization.
The condition is reachable from an unprivileged user-mode thread on a build with CONFIG_XTENSA_MMU, CONFIG_USERSPACE and dynamically allocated kernel objects. k_object_alloc(K_OBJ_THREAD) is a system call and allocates the thread object from the caller's resource pool without zeroing it, and the k_thread_create() verifier accepts such an object while forcing the K_USER option, so the migration branch is taken whenever the recycled heap bytes at that offset are non-zero. Because a user thread can also allocate, fill and free other kernel objects from the same heap, the stale bytes are groomable rather than merely random.
Walking the bogus table in region_map_update() performs an unguarded index into l2_page_tables_counter[], may copy from and write through the attacker-influenceable level-1 base in dup_l2_table_if_needed(), and finally writes a page-table entry through a second pointer read out of that memory — once per page of the new thread's stack. The result is out-of-bounds reads and writes executed in supervisor mode, ranging from an immediate kernel panic (observed as Xtensa EXCAUSE 13 on Intel ADSP DSP firmware with user threads) to corruption of kernel memory and escape from the user-mode sandbox.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-12 17:17 UTC
CWE
- CWE-824 - memory-safety
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject | zephyr |
Affected:
3.6.0 , < 4.3.2
(semver)
Affected: 4.4.0 , < 4.5.0 (semver) |
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CVE-2026-88054 (GCVE-0-2026-88054)
Vulnerability from cvelistv5 – Published: 2026-09-10 17:39 – Updated: 2026-09-10 18:07
VLAI
EPSS
VEX
Title
Tesseract: Denial of service via empty-stack dereference in Plumbing/Series at model load
Summary
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, Plumbing::DeSerialize in src/lstm/plumbing.cpp rejects excessively large network stacks but accepts a zero-length stack for NT_SERIES, NT_PARALLEL, or NT_REVERSED layers in a crafted .traineddata model. During LSTMRecognizer initialization in src/lstm/lstmrecognizer.cpp, CacheXScaleFactor(XScaleFactor()) reaches Series::CacheXScaleFactor in src/lstm/series.cpp, which dereferences stack_[0] on the empty vector and invokes a virtual method through an invalid Network pointer. This causes a deterministic crash and denial of service at model load. No fixed release is available as of this review.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 18:06 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/tesseract-ocr/tesseract/securi… | x_refsource_CONFIRM |
| https://github.com/tesseract-ocr/tesseract/commit… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tesseract-ocr | tesseract |
Affected:
<= 5.5.3
|
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CVE-2026-86847 (GCVE-0-2026-86847)
Vulnerability from cvelistv5 – Published: 2026-10-14 17:52 – Updated: 2026-11-11 13:54
VLAI
EPSS
VEX
Title
Dpdk: dpdk: guest can trigger infinite loop in vhost-crypto writeback chain cleanup
Summary
A flaw was found in DPDK lib/vhost vhost-crypto. Write-back chain cleanup can follow an uninitialized next pointer when mapping a guest descriptor fails, causing the host vhost-crypto process to hang or crash.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 01:44 UTC
CWE
- CWE-824 - Access of Uninitialized Pointer
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:94629 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:94630 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:96083 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:98505 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:98616 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-86847 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2529847 | issue-trackingx_refsource_REDHAT |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
2:25.11-2.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
2:25.11-2.el10_3 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.3 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:23.11-3.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
2:25.11-2.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
2:25.11-2.el9_9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Fast Datapath for RHEL 10 |
cpe:/o:redhat:enterprise_linux:10::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 8 |
cpe:/o:redhat:enterprise_linux:8::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 9 |
cpe:/o:redhat:enterprise_linux:9::fastdatapath
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenStack Platform 13 (Queens) |
cpe:/a:redhat:openstack:13
|
Date Public
2026-10-14 15:01
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CVE-2026-73857 (GCVE-0-2026-73857)
Vulnerability from cvelistv5 – Published: 2026-11-09 21:37 – Updated: 2026-11-10 16:17
VLAI
EPSS
VEX
Title
ModSecurity v3 XML Request Body Processor Uninitialized Pointer Dereference Vulnerability
Summary
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.15 until 3.0.17, XML request body processing with SecParseXmlIntoArgs set to On or OnlyArgs can leave XMLNodes::parsing_ctx_arg uninitialized in the SAX end-element callback. A single crafted unauthenticated HTTP request can make a worker dereference the pointer, resulting in a constant-value write to an attacker-controlled address. The resulting memory corruption can terminate the worker and may disclose memory or redirect execution. Earlier 3.0.x releases and ModSecurity 2.x do not use the affected path. This issue is fixed in version 3.0.17.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-10 16:17 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/owasp-modsecurity/ModSecurity/… | x_refsource_CONFIRM |
| https://github.com/owasp-modsecurity/ModSecurity/… | x_refsource_MISC |
| https://github.com/owasp-modsecurity/ModSecurity/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| owasp-modsecurity | ModSecurity |
Affected:
>= 3.0.15, < 3.0.17
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.