Common Weakness Enumeration
CWE-122
AllowedHeap-based Buffer Overflow
Abstraction: Variant · Status: Draft
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
5392 vulnerabilities reference this CWE, most recent first.
CVE-2026-15520 (GCVE-0-2026-15520)
Vulnerability from cvelistv5 – Published: 2026-07-13 01:15 – Updated: 2026-07-13 15:53 X_Open Source
VLAI
EPSS
VEX
Title
GNU LibreDWG R2004 Section Decompression decode.c decompress_R2004_section heap-based overflow
Summary
A vulnerability was determined in GNU LibreDWG 0.13.4-154-g0b573035. This impacts the function decompress_R2004_section of the file src/decode.c of the component R2004 Section Decompression. Executing a manipulation can lead to heap-based buffer overflow. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Upgrading to version 0.14.8396 will fix this issue. This patch is called 3d0f9fc2eddbd6579c99af3111c37c98f03475d0. You should upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 15:53 UTC
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377849 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377849/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15520 | third-party-advisory |
| https://vuldb.com/submit/851190 | third-party-advisory |
| https://github.com/LibreDWG/libredwg/issues/1251 | issue-tracking |
| https://github.com/advisories/GHSA-qg2f-8389-w95j | broken-linkissue-tracking |
| https://github.com/HackC0der/CVE-Repos/blob/main/… | exploit |
| https://github.com/LibreDWG/libredwg/commit/3d0f9… | patch |
| https://github.com/LibreDWG/libredwg/releases/tag… | patch |
| https://www.gnu.org/ | broken-linkproduct |
Impacted products
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CVE-2026-15506 (GCVE-0-2026-15506)
Vulnerability from cvelistv5 – Published: 2026-07-12 21:30 – Updated: 2026-07-14 16:35
VLAI
EPSS
VEX
Title
SecureAge CatchPulse Driver saappctl.sys heap-based overflow
Summary
A security vulnerability has been detected in SecureAge CatchPulse up to 10.9.3. The affected element is an unknown function in the library saappctl.sys of the component Driver. Such manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 10.10.0 is sufficient to fix this issue. You should upgrade the affected component. The vendor was contacted early about this disclosure.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 18:06 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377835 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377835/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15506 | third-party-advisory |
| https://vuldb.com/submit/845584 | third-party-advisory |
| https://jordanhiggins.blog/catchpulse-antivirus-e… | broken-linkexploit |
| https://github.com/Kalagious/SecureAgeExploit | exploit |
| https://youtu.be/xZqRVWlrah8 | media-coverage |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SecureAge | CatchPulse |
Affected:
10.9.0
Affected: 10.9.1 Affected: 10.9.2 Affected: 10.9.3 Unaffected: 10.10.0 cpe:2.3:a:secureage:catchpulse:*:*:*:*:*:*:*:* |
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CVE-2026-15449 (GCVE-0-2026-15449)
Vulnerability from cvelistv5 – Published: 2026-07-16 19:27 – Updated: 2026-07-17 12:42
VLAI
EPSS
VEX
Title
TOCTOU double copyin in illumos dld ioctl handling causes kernel heap corruption
Summary
A time-of-check to time-of-use (TOCTOU) flaw in the illumos data-link pseudo-driver (dld) affects handling of the DLDIOC_GETMACPROP and DLDIOC_SETMACPROP ioctls on /dev/dld. drv_ioc_prop_common() in usr/src/uts/common/io/dld/dld_drv.c copies the dld_ioc_macprop_t ioctl header in once to read its pr_valsize field, sizes and allocates a kernel heap buffer from that value, and then copies the full request in a second time from the same unprivileged user address. A concurrent thread can enlarge pr_valsize between the two copyins, so the second copyin and the subsequent property handling write beyond the end of the undersized allocation and corrupt the kernel heap. An unprivileged local user, including one confined to a non-global zone that owns a datalink, can trigger this to panic the system. The resulting kernel heap corruption may be usable for further compromise.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 12:42 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://illumos.topicbox.com/groups/developer/T92… | mailing-list |
| https://illumos.org/issues/18020 | issue-tracking |
| https://github.com/illumos/illumos-gate/commit/69… | patch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| illumos | illumos-gate |
Affected:
eae72b5b807baa9116e64502cbb278edf15f3146 , < 6959feb5b430411a4809b06c53dcdb42fb525eac
(git)
|
|
| OmniOS | OmniOS |
Affected:
any , < r151054
(custom)
Affected: r151058 , < r151058j (custom) Affected: r151056 , < r151056aj (custom) Affected: r151054 , < r151054bj (custom) |
|
| Triton Data Center | SmartOS |
Affected:
any , < 202060709
(custom)
|
Date Public
2026-07-08 19:00
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CVE-2026-15422 (GCVE-0-2026-15422)
Vulnerability from cvelistv5 – Published: 2026-07-16 19:29 – Updated: 2026-07-17 13:47
VLAI
EPSS
VEX
Title
SCTP needs to better-check INIT ACK chunk parameters
Summary
The illumos SCTP inbound path performs association lookup for INIT ACK chunks without adequately validating the address parameters carried in the chunk. Since this lookup runs during packet classification (i.e. before SCTP integrity checks or IPsec policy are applied) a remote, unauthenticated attacker can send a crafted SCTP INIT ACK packet with malformed address parameters to cause an out-of-bounds access and kernel heap corruption, which may lead to remote code execution. The flaw has existed since 2010 (illumos-gate commit a5407c02), and affects any illumos distribution prior to illumos-gate commit 53a3efde.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 13:47 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://illumos.topicbox.com/groups/developer/Ta1… | mailing-list |
| https://illumos.org/issues/18117 | issue-tracking |
| https://github.com/illumos/illumos-gate/commit/53… | patch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| illumos | illumos-gate |
Affected:
a5407c02d5ed61b29481b9b71f1307d7ebec9e5c , < 53a3efdeff8e6745bbfb69c5360f94962fb79e75
(git)
|
|
| OmniOS | OmniOS |
Affected:
r151058 , < r151058j
(custom)
Affected: r151056 , < r151056aj (custom) Affected: r151054 , < r151054bj (custom) Affected: any , < r151054 (custom) |
|
| Triton Data Center | SmartOS |
Affected:
any , < 202060709
(custom)
|
Date Public
2026-07-08 18:00
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CVE-2026-15182 (GCVE-0-2026-15182)
Vulnerability from cvelistv5 – Published: 2026-07-09 11:30 – Updated: 2026-07-09 17:45 X_Open Source
VLAI
EPSS
VEX
Title
GNU LibreDWG BMP Image dwg.c dwg_bmp heap-based overflow
Summary
A vulnerability has been found in GNU LibreDWG up to 0.13.4. The affected element is the function dwg_bmp of the file src/dwg.c of the component BMP Image Handler. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. Upgrading to version 0.14 is sufficient to fix this issue. The name of the patch is 18fd542bb4d5ccedf9de12052bf50068b2b26f06. It is suggested to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 17:45 UTC
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377109 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377109/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15182 | third-party-advisory |
| https://vuldb.com/submit/851191 | third-party-advisory |
| https://github.com/LibreDWG/libredwg/issues/1252 | issue-tracking |
| https://github.com/HackC0der/CVE-Repos/blob/main/… | exploit |
| https://github.com/LibreDWG/libredwg/commit/18fd5… | patch |
| https://github.com/LibreDWG/libredwg/releases/tag/0.14 | patch |
| https://github.com/LibreDWG/libredwg/issues/1249 | issue-tracking |
| https://www.gnu.org/ | broken-linkproduct |
Impacted products
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CVE-2026-15174 (GCVE-0-2026-15174)
Vulnerability from cvelistv5 – Published: 2026-07-08 20:51 – Updated: 2026-07-09 13:14
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
Catapult DCT2000 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:14 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.7
(semver)
Affected: 4.4.0 , < 4.4.17 (semver) |
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CVE-2026-15173 (GCVE-0-2026-15173)
Vulnerability from cvelistv5 – Published: 2026-07-08 20:51 – Updated: 2026-07-09 13:44
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
pcapng file parser crash in Wireshark 4.6.0 to 4.6.6 allows denial of service
Severity
4.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:44 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.7
(semver)
|
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CVE-2026-15170 (GCVE-0-2026-15170)
Vulnerability from cvelistv5 – Published: 2026-07-08 20:50 – Updated: 2026-07-09 13:46
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
Z39.50 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:46 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.7
(semver)
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CVE-2026-15169 (GCVE-0-2026-15169)
Vulnerability from cvelistv5 – Published: 2026-07-08 20:51 – Updated: 2026-07-09 13:45
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
UMTS FP protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:45 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.7
(semver)
Affected: 4.4.0 , < 4.4.17 (semver) |
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CVE-2026-15165 (GCVE-0-2026-15165)
Vulnerability from cvelistv5 – Published: 2026-07-08 20:50 – Updated: 2026-07-09 13:47
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
TLS ECH decryptor crash in Wireshark 4.6.0 to 4.6.6 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:46 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.7
(semver)
|
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"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21390"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Wireshark",
"vendor": "Wireshark Foundation",
"versions": [
{
"lessThan": "4.6.7",
"status": "affected",
"version": "4.6.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Claude and Ada Logics"
}
],
"descriptions": [
{
"lang": "en",
"value": "TLS ECH decryptor crash in Wireshark 4.6.0 to 4.6.6 allows denial of service"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "CWE-122: Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-08T20:50:45.283Z",
"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"shortName": "GitLab"
},
"references": [
{
"url": "https://www.wireshark.org/security/wnpa-sec-2026-56.html"
},
{
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21390"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 4.6.7 or above"
}
],
"title": "Heap-based Buffer Overflow in Wireshark"
}
},
"cveMetadata": {
"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"assignerShortName": "GitLab",
"cveId": "CVE-2026-15165",
"datePublished": "2026-07-08T20:50:45.283Z",
"dateReserved": "2026-07-08T20:45:23.874Z",
"dateUpdated": "2026-07-09T13:47:02.064Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Pre-design: Use a language or compiler that performs automatic bounds checking.
Mitigation
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation MIT-10
Operation
Build and Compilation
Strategy: Environment Hardening
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-11
Operation
Build and Compilation
Strategy: Environment Hardening
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation
Implementation
Implement and perform bounds checking on input.
Mitigation
Implementation
Strategy: Libraries or Frameworks
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
Operation
Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.