CWE-787
Weakness 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.
Dimensions
- Behavior-Type: Write
- Resource-Type: Memory Buffer
- Resource-Property: Out-of-bounds
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. However, closer examination is required.
While this CWE is allowed for mapping, it has more specific children that might be a better fit. Carefully read both the name and description to ensure that this mapping is appropriate. Consider the root cause errors that have led to the out-of-bounds write by examining "CanFollow" relationships for this entry.
Relationships and members
Modes of introduction
Detection methods
Automated Static Analysis
This weakness can often be detected using automated static analysis tools. Many modern tools use data flow analysis or constraint-based techniques to minimize the number of false positives.
Automated static analysis generally does not account for environmental considerations when reporting out-of-bounds memory operations. This can make it difficult for users to determine which warnings should be investigated first. For example, an analysis tool might report buffer overflows that originate from command line arguments in a program that is not expected to run with setuid or other special privileges.
Effectiveness: High
Detection techniques for buffer-related errors are more mature than for most other weakness types.
Automated Dynamic Analysis
This weakness can be detected using dynamic tools and techniques that interact with the software using large test suites with many diverse inputs, such as fuzz testing (fuzzing), robustness testing, and fault injection. The software's operation may slow down, but it should not become unstable, crash, or generate incorrect results.
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.
Content history
Suggested mappings to ISA/IEC 62443.
Provided diagram to improve CWE usability
updated Demonstrative_Examples
updated Relationships
updated Common_Consequences
updated Demonstrative_Examples
updated Relationships
updated Description
updated Applicable_Platforms, Demonstrative_Examples, Detection_Factors, Likelihood_of_Exploit, Observed_Examples, Potential_Mitigations, References, Relationships, Time_of_Introduction
updated Observed_Examples, Relationships
updated Observed_Examples
updated Alternate_Terms, Demonstrative_Examples, Observed_Examples, Relationships
updated Relationships
updated Demonstrative_Examples
updated Demonstrative_Examples, Potential_Mitigations, Relationships
updated Observed_Examples, Relationships
updated Applicable_Platforms
updated Alternate_Terms, Demonstrative_Examples, Description
updated Potential_Mitigations, References, Relationships, Taxonomy_Mappings
updated Mapping_Notes, Relationships, Taxonomy_Mappings
updated Demonstrative_Examples
updated Alternate_Terms, Common_Consequences, Description, Diagram, Weakness_Ordinalities
updated Observed_Examples, Relationships
updated Observed_Examples, Relationships
updated Affected_Resources, Functional_Areas, References
updated Applicable_Platforms, Detection_Factors, References, Relationships
updated Mapping_Notes
updated Dimensions, Observed_Examples, References, Relationships, Taxonomy_Mappings
17075 vulnerabilities reference this CWE, most recent first.
GHSA-W4RG-R8XP-8849
Vulnerability from github – Published: 2023-04-07 03:30 – Updated: 2023-04-13 18:30Tenda AC5 US_AC5V1.0RTL_V15.03.06.28 was discovered to contain a stack overflow via the formWifiBasicSet function. This vulnerability allows attackers to cause a Denial of Service (DoS) or execute arbitrary code via a crafted payload.
{
"affected": [],
"aliases": [
"CVE-2023-25217"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-07T02:15:00Z",
"severity": "CRITICAL"
},
"details": "Tenda AC5 US_AC5V1.0RTL_V15.03.06.28 was discovered to contain a stack overflow via the formWifiBasicSet function. This vulnerability allows attackers to cause a Denial of Service (DoS) or execute arbitrary code via a crafted payload.",
"id": "GHSA-w4rg-r8xp-8849",
"modified": "2023-04-13T18:30:30Z",
"published": "2023-04-07T03:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-25217"
},
{
"type": "WEB",
"url": "https://github.com/DrizzlingSun/Tenda/blob/main/AC5/10/10.md"
}
],
"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-W4WM-Q9H6-Q3VF
Vulnerability from github – Published: 2026-10-06 00:32 – Updated: 2026-10-06 00:32In AMD Versal™ Adaptive SoC devices, insufficient boundary checks in USB boot mode—when enabled through board modifications—could allow crafted images to trigger a buffer overflow and overwrite an active function pointer, which may result in arbitrary code execution during boot process. This condition could lead to potential impacts on confidentiality, integrity, and availability.
{
"affected": [],
"aliases": [
"CVE-2026-0482"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-05T22:16:56Z",
"severity": "MODERATE"
},
"details": "In AMD Versal\u2122 Adaptive SoC devices, insufficient boundary checks in USB boot mode\u2014when enabled through board modifications\u2014could allow crafted images to trigger a buffer overflow and overwrite an active function pointer, which may result in arbitrary code execution during boot process. This condition could lead to potential impacts on confidentiality, integrity, and availability.",
"id": "GHSA-w4wm-q9h6-q3vf",
"modified": "2026-10-06T00:32:49Z",
"published": "2026-10-06T00:32:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0482"
},
{
"type": "WEB",
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-8028.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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-W4WV-VQ5V-XP26
Vulnerability from github – Published: 2024-02-26 18:30 – Updated: 2025-11-04 21:31A heap-based buffer overflow vulnerability exists in the GGUF library gguf_fread_str functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2024-23496"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-26T16:27:56Z",
"severity": "HIGH"
},
"details": "A heap-based buffer overflow vulnerability exists in the GGUF library gguf_fread_str functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.",
"id": "GHSA-w4wv-vq5v-xp26",
"modified": "2025-11-04T21:31:13Z",
"published": "2024-02-26T18:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23496"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2024-1913"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1913"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-W4X5-3C4X-9MMC
Vulnerability from github – Published: 2022-05-24 17:36 – Updated: 2022-05-24 17:36In RW_SendRawFrame of rw_main.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-157650117
{
"affected": [],
"aliases": [
"CVE-2020-27048"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-12-15T17:15:00Z",
"severity": "HIGH"
},
"details": "In RW_SendRawFrame of rw_main.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-157650117",
"id": "GHSA-w4x5-3c4x-9mmc",
"modified": "2022-05-24T17:36:31Z",
"published": "2022-05-24T17:36:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27048"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2020-12-01"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-W4X9-4MFP-QPX8
Vulnerability from github – Published: 2026-11-02 03:30 – Updated: 2026-11-02 15:31In Modem, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01777997; Issue ID: MSV-8905.
{
"affected": [],
"aliases": [
"CVE-2026-20563"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-11-02T03:17:33Z",
"severity": "MODERATE"
},
"details": "In Modem, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01777997; Issue ID: MSV-8905.",
"id": "GHSA-w4x9-4mfp-qpx8",
"modified": "2026-11-02T15:31:30Z",
"published": "2026-11-02T03:30:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20563"
},
{
"type": "WEB",
"url": "https://www.mediatek.com/product-security-bulletin/November-2026"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-W527-8C6Q-5W2M
Vulnerability from github – Published: 2025-10-14 12:31 – Updated: 2025-10-14 12:31A vulnerability has been identified in Solid Edge SE2024 (All versions < V224.0 Update 14), Solid Edge SE2025 (All versions < V225.0 Update 6). The affected applications contains an out of bounds write vulnerability while parsing specially crafted PRT files. This could allow an attacker to crash the application or execute code in the context of the current process.
{
"affected": [],
"aliases": [
"CVE-2025-40809"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T10:15:39Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in Solid Edge SE2024 (All versions \u003c V224.0 Update 14), Solid Edge SE2025 (All versions \u003c V225.0 Update 6). The affected applications contains an out of bounds write vulnerability while parsing specially crafted PRT files. This could allow an attacker to crash the application or execute code in the context of the current process.",
"id": "GHSA-w527-8c6q-5w2m",
"modified": "2025-10-14T12:31:31Z",
"published": "2025-10-14T12:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40809"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-541582.html"
}
],
"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:L/AC:H/AT:N/PR:N/UI:P/VC:H/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-W52R-6RJ9-VV87
Vulnerability from github – Published: 2023-05-09 03:30 – Updated: 2024-04-04 03:54In MP3 encoder, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with System execution privileges needed.
{
"affected": [],
"aliases": [
"CVE-2022-48235"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-05-09T02:15:10Z",
"severity": "MODERATE"
},
"details": "In MP3 encoder, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with System execution privileges needed.",
"id": "GHSA-w52r-6rj9-vv87",
"modified": "2024-04-04T03:54:02Z",
"published": "2023-05-09T03:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48235"
},
{
"type": "WEB",
"url": "https://www.unisoc.com/en_us/secy/announcementDetail/1654776866982133761"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-W52V-MF92-RMG7
Vulnerability from github – Published: 2021-12-06 00:00 – Updated: 2021-12-08 00:01An out-of-bounds write vulnerability exists when reading a TIF file using Open Design Alliance (ODA) Drawings Explorer before 2022.11. The specific issue exists after loading TIF files. Crafted data in a TIF file can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
{
"affected": [],
"aliases": [
"CVE-2021-44048"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-05T21:15:00Z",
"severity": "HIGH"
},
"details": "An out-of-bounds write vulnerability exists when reading a TIF file using Open Design Alliance (ODA) Drawings Explorer before 2022.11. The specific issue exists after loading TIF files. Crafted data in a TIF file can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.",
"id": "GHSA-w52v-mf92-rmg7",
"modified": "2021-12-08T00:01:59Z",
"published": "2021-12-06T00:00:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44048"
},
{
"type": "WEB",
"url": "https://www.opendesign.com/security-advisories"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-W52X-CP47-XHHW
Vulnerability from github – Published: 2023-02-15 15:30 – Updated: 2023-02-23 06:30A vulnerability, which was classified as critical, has been found in GPAC 2.3-DEV-rev40-g3602a5ded. This issue affects the function mp3_dmx_process of the file filters/reframe_mp3.c. The manipulation leads to heap-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-221087.
{
"affected": [],
"aliases": [
"CVE-2023-0841"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-02-15T14:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability, which was classified as critical, has been found in GPAC 2.3-DEV-rev40-g3602a5ded. This issue affects the function mp3_dmx_process of the file filters/reframe_mp3.c. The manipulation leads to heap-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-221087.",
"id": "GHSA-w52x-cp47-xhhw",
"modified": "2023-02-23T06:30:18Z",
"published": "2023-02-15T15:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0841"
},
{
"type": "WEB",
"url": "https://github.com/qianshuidewajueji/poc/blob/main/gpac/mp3_dmx_process_poc3"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.221087"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.221087"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-W535-R5MV-2R4M
Vulnerability from github – Published: 2026-10-08 15:33 – Updated: 2026-10-08 15:33IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacker to obtain sensitive information and cause a denial of service due to an out-of-bounds write.
{
"affected": [],
"aliases": [
"CVE-2026-16159"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-08T14:16:52Z",
"severity": "HIGH"
},
"details": "IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacker to obtain sensitive information and cause a denial of service due to an out-of-bounds write.",
"id": "GHSA-w535-r5mv-2r4m",
"modified": "2026-10-08T15:33:00Z",
"published": "2026-10-08T15:33:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16159"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7289775"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-3
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
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
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
- 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
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
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
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.