Common Weakness Enumeration
CWE-787
Allowed-with-ReviewOut-of-bounds Write
Abstraction: Base · Status: Draft
The product writes data past the end, or before the beginning, of the intended buffer.
15246 vulnerabilities reference this CWE, most recent first.
GHSA-4PM7-9GG5-72PV
Vulnerability from github – Published: 2022-02-19 00:01 – Updated: 2022-03-17 00:05
VLAI
Details
Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a security regression compared to the versions shipped in Red Hat Enterprise Linux 8.4. A user who installs or updates to Red Hat Enterprise Linux 8.5.0 would be vulnerable to the mentioned CVEs, even if they were properly fixed in Red Hat Enterprise Linux 8.4. CVE-2021-20325 was assigned to that Red Hat specific security regression and it does not affect the upstream versions of httpd.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2021-20325"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-18T18:15:00Z",
"severity": "CRITICAL"
},
"details": "Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a security regression compared to the versions shipped in Red Hat Enterprise Linux 8.4. A user who installs or updates to Red Hat Enterprise Linux 8.5.0 would be vulnerable to the mentioned CVEs, even if they were properly fixed in Red Hat Enterprise Linux 8.4. CVE-2021-20325 was assigned to that Red Hat specific security regression and it does not affect the upstream versions of httpd.",
"id": "GHSA-4pm7-9gg5-72pv",
"modified": "2022-03-17T00:05:29Z",
"published": "2022-02-19T00:01:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20325"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2017321"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PQ4-6GR5-CR69
Vulnerability from github – Published: 2026-02-18 21:31 – Updated: 2026-02-18 21:31
VLAI
Details
An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-0665"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-18T21:16:22Z",
"severity": "MODERATE"
},
"details": "An off-by-one error was found in QEMU\u0027s KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption.",
"id": "GHSA-4pq4-6gr5-cr69",
"modified": "2026-02-18T21:31:23Z",
"published": "2026-02-18T21:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0665"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-0665"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2428640"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PR5-H4QV-336X
Vulnerability from github – Published: 2022-11-02 12:00 – Updated: 2025-10-22 00:32
VLAI
Details
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.7.1 and iPadOS 15.7.1, iOS 16.1 and iPadOS 16. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-42827"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-11-01T20:15:00Z",
"severity": "HIGH"
},
"details": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.7.1 and iPadOS 15.7.1, iOS 16.1 and iPadOS 16. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..",
"id": "GHSA-4pr5-h4qv-336x",
"modified": "2025-10-22T00:32:37Z",
"published": "2022-11-02T12:00:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42827"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213489"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213490"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42827"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PRC-QXRC-76P6
Vulnerability from github – Published: 2022-05-13 01:18 – Updated: 2025-10-22 00:31
VLAI
Details
Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Office Memory Corruption Vulnerability".
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-0798"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-01-10T01:29:00Z",
"severity": "HIGH"
},
"details": "Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka \"Microsoft Office Memory Corruption Vulnerability\".",
"id": "GHSA-4prc-qxrc-76p6",
"modified": "2025-10-22T00:31:30Z",
"published": "2022-05-13T01:18:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0798"
},
{
"type": "WEB",
"url": "https://0patch.blogspot.com/2018/01/bringing-abandoned-equation-editor-back.html"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0798"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0798"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/102370"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1040153"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PRF-X4PQ-45W4
Vulnerability from github – Published: 2024-12-13 12:31 – Updated: 2025-10-02 15:31
VLAI
Details
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Routing Service) allows Overflow Variables and Tags.This issue affects Connext Professional: from 7.4.0 before 7.5.0, from 7.0.0 before 7.3.0.5, from 6.1.0 before 6.1.2.21, from 6.0.0 before 6.0.1.40.
Severity
{
"affected": [],
"aliases": [
"CVE-2024-52066"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-13T11:15:09Z",
"severity": "HIGH"
},
"details": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027) vulnerability in RTI Connext Professional (Routing Service) allows Overflow Variables and Tags.This issue affects Connext Professional: from 7.4.0 before 7.5.0, from 7.0.0 before 7.3.0.5, from 6.1.0 before 6.1.2.21, from 6.0.0 before 6.0.1.40.",
"id": "GHSA-4prf-x4pq-45w4",
"modified": "2025-10-02T15:31:12Z",
"published": "2024-12-13T12:31:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52066"
},
{
"type": "WEB",
"url": "https://www.rti.com/vulnerabilities/#cve-2024-52066"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-4PRH-62V9-32Q3
Vulnerability from github – Published: 2022-02-10 00:00 – Updated: 2022-04-20 00:01
VLAI
Details
An out-of-bounds write vulnerability exists in the HandleSeaCloudMessage functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. The HandleIncomingSeaCloudMessage function uses at [3] the json_object_get_string to populate the p_name global variable. The p_name is only 0x80 bytes long, and the total MQTT message could be up to 0x201 bytes. Because the function json_object_get_string will fill str based on the length of the json’s value and not the actual str size, this would result in a possible out-of-bounds write.
Severity
8.1 (High)
{
"affected": [],
"aliases": [
"CVE-2021-21970"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-04T23:15:00Z",
"severity": "HIGH"
},
"details": "An out-of-bounds write vulnerability exists in the HandleSeaCloudMessage functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. The HandleIncomingSeaCloudMessage function uses at [3] the json_object_get_string to populate the p_name global variable. The p_name is only 0x80 bytes long, and the total MQTT message could be up to 0x201 bytes. Because the function json_object_get_string will fill str based on the length of the json\u2019s value and not the actual str size, this would result in a possible out-of-bounds write.",
"id": "GHSA-4prh-62v9-32q3",
"modified": "2022-04-20T00:01:31Z",
"published": "2022-02-10T00:00:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21970"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1396"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PX5-4P3V-7568
Vulnerability from github – Published: 2022-03-16 00:00 – Updated: 2025-06-25 21:30
VLAI
Details
Heap buffer overflow in Clickhouse's LZ4 compression codec when parsing a malicious query. There is no verification that the copy operations in the LZ4::decompressImpl loop and especially the arbitrary copy operation wildCopy(op, ip, copy_end), don’t exceed the destination buffer’s limits.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2021-43304"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-14T23:15:00Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in Clickhouse\u0027s LZ4 compression codec when parsing a malicious query. There is no verification that the copy operations in the LZ4::decompressImpl loop and especially the arbitrary copy operation wildCopy\u003ccopy_amount\u003e(op, ip, copy_end), don\u2019t exceed the destination buffer\u2019s limits.",
"id": "GHSA-4px5-4p3v-7568",
"modified": "2025-06-25T21:30:30Z",
"published": "2022-03-16T00:00:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43304"
},
{
"type": "WEB",
"url": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PX5-72VP-47G3
Vulnerability from github – Published: 2025-05-05 03:30 – Updated: 2025-05-06 15:31
VLAI
Details
In scp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS09625562; Issue ID: MSV-3027.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-20668"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-05T03:15:22Z",
"severity": "HIGH"
},
"details": "In scp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS09625562; Issue ID: MSV-3027.",
"id": "GHSA-4px5-72vp-47g3",
"modified": "2025-05-06T15:31:03Z",
"published": "2025-05-05T03:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20668"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/May-2025"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4Q22-422G-M4PJ
Vulnerability from github – Published: 2024-06-13 18:31 – Updated: 2024-10-03 21:56
VLAI
Summary
Elasticsearch StackOverflow vulnerability
Details
A flaw was discovered in Elasticsearch, affecting document ingestion when an index template contains a dynamic field mapping of “passthrough” type. Under certain circumstances, ingesting documents in this index would cause a StackOverflow exception to be thrown and ultimately lead to a Denial of Service. Note that passthrough fields is an experimental feature.
Severity
4.9 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.elasticsearch:elasticsearch"
},
"ranges": [
{
"events": [
{
"introduced": "8.13.1"
},
{
"fixed": "8.14.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-37280"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2024-06-13T22:03:51Z",
"nvd_published_at": "2024-06-13T17:15:50Z",
"severity": "MODERATE"
},
"details": "A flaw was discovered in Elasticsearch, affecting document ingestion when an index template contains a dynamic field mapping of \u201cpassthrough\u201d type. Under certain circumstances, ingesting documents in this index would cause a StackOverflow exception to be thrown and ultimately lead to a Denial of Service. Note that passthrough fields is an experimental feature.",
"id": "GHSA-4q22-422g-m4pj",
"modified": "2024-10-03T21:56:24Z",
"published": "2024-06-13T18:31:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37280"
},
{
"type": "WEB",
"url": "https://discuss.elastic.co/t/elasticsearch-8-14-0-security-update-esa-2024-14/361007"
},
{
"type": "PACKAGE",
"url": "https://github.com/elastic/elasticsearch"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Elasticsearch StackOverflow vulnerability"
}
GHSA-4Q22-GV7R-5C6G
Vulnerability from github – Published: 2022-08-26 00:03 – Updated: 2022-08-27 00:00
VLAI
Details
H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function WlanWpsSet.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-36474"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-25T14:15:00Z",
"severity": "HIGH"
},
"details": "H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function WlanWpsSet.",
"id": "GHSA-4q22-gv7r-5c6g",
"modified": "2022-08-27T00:00:45Z",
"published": "2022-08-26T00:03:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36474"
},
{
"type": "WEB",
"url": "https://github.com/Darry-lang1/vuln/blob/main/H3C/H3C%20B5Mini/9/readme.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-3
Requirements
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
- Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
Mitigation MIT-4.1
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
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-9
Implementation
- Consider adhering to the following rules when allocating and managing an application's memory:
- Double check that the buffer is as large as specified.
- When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
- Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
- If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
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 MIT-12
Operation
Strategy: Environment Hardening
- Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
- For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
Mitigation MIT-13
Implementation
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
No CAPEC attack patterns related to this CWE.