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
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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
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updated Alternate_Terms, Common_Consequences, Description, Diagram, Weakness_Ordinalities
updated Observed_Examples, Relationships
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updated Affected_Resources, Functional_Areas, References
updated Applicable_Platforms, Detection_Factors, References, Relationships
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updated Dimensions, Observed_Examples, References, Relationships, Taxonomy_Mappings
17026 vulnerabilities reference this CWE, most recent first.
GHSA-QRR3-Q4MC-G567
Vulnerability from github – Published: 2025-01-30 21:31 – Updated: 2025-01-30 21:31Sante PACS Server DCM File Parsing Memory Corruption Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Sante PACS Server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the parsing of DCM files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-25302.
{
"affected": [],
"aliases": [
"CVE-2025-0568"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-30T21:15:13Z",
"severity": "HIGH"
},
"details": "Sante PACS Server DCM File Parsing Memory Corruption Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Sante PACS Server. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the parsing of DCM files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-25302.",
"id": "GHSA-qrr3-q4mc-g567",
"modified": "2025-01-30T21:31:23Z",
"published": "2025-01-30T21:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0568"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-049"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QRR4-P6RR-3PJR
Vulnerability from github – Published: 2023-07-06 03:30 – Updated: 2024-04-04 05:24Heap out of bound write vulnerability in RmtUimNeedApdu of RILD prior to SMR Jul-2023 Release 1 allows attackers to execute arbitrary code.
{
"affected": [],
"aliases": [
"CVE-2023-30649"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-06T03:15:10Z",
"severity": "HIGH"
},
"details": "Heap out of bound write vulnerability in RmtUimNeedApdu of RILD prior to SMR Jul-2023 Release 1 allows attackers to execute arbitrary code.",
"id": "GHSA-qrr4-p6rr-3pjr",
"modified": "2024-04-04T05:24:45Z",
"published": "2023-07-06T03:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-30649"
},
{
"type": "WEB",
"url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2023\u0026month=07"
}
],
"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-QRV4-5384-PRHQ
Vulnerability from github – Published: 2022-05-24 17:38 – Updated: 2022-05-24 17:38In WAVSource::read of WAVExtractor.cpp, there is a possible out of bounds write due to an integer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android; Versions: Android-8.1, Android-9, Android-10, Android-11, Android-8.0; Android ID: A-170583712.
{
"affected": [],
"aliases": [
"CVE-2021-0312"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-01-11T22:15:00Z",
"severity": "HIGH"
},
"details": "In WAVSource::read of WAVExtractor.cpp, there is a possible out of bounds write due to an integer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android; Versions: Android-8.1, Android-9, Android-10, Android-11, Android-8.0; Android ID: A-170583712.",
"id": "GHSA-qrv4-5384-prhq",
"modified": "2022-05-24T17:38:41Z",
"published": "2022-05-24T17:38:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0312"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2021-01-01"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-QRV7-H49G-2QFW
Vulnerability from github – Published: 2022-05-24 22:28 – Updated: 2022-05-24 22:28An exploitable vulnerability exists in the object stream parsing functionality of Nitro Software, Inc.’s Nitro Pro 13.13.2.242 when updating its cross-reference table. When processing an object stream from a PDF document, the application will perform a calculation in order to allocate memory for the list of indirect objects. Due to an error when calculating this size, an integer overflow may occur which can result in an undersized buffer being allocated. Later when initializing this buffer, the application can write outside its bounds which can cause a memory corruption that can lead to code execution. A specially crafted document can be delivered to a victim in order to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2020-6113"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-09-17T13:15:00Z",
"severity": "HIGH"
},
"details": "An exploitable vulnerability exists in the object stream parsing functionality of Nitro Software, Inc.\u2019s Nitro Pro 13.13.2.242 when updating its cross-reference table. When processing an object stream from a PDF document, the application will perform a calculation in order to allocate memory for the list of indirect objects. Due to an error when calculating this size, an integer overflow may occur which can result in an undersized buffer being allocated. Later when initializing this buffer, the application can write outside its bounds which can cause a memory corruption that can lead to code execution. A specially crafted document can be delivered to a victim in order to trigger this vulnerability.",
"id": "GHSA-qrv7-h49g-2qfw",
"modified": "2022-05-24T22:28:55Z",
"published": "2022-05-24T22:28:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6113"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1063"
}
],
"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-QRVW-696R-565V
Vulnerability from github – Published: 2022-04-12 00:00 – Updated: 2022-04-19 00:01Heap-based buffer overflow vulnerability in parser_ipma function of libsimba library prior to SMR Apr-2022 Release 1 allows code execution by remote attackers.
{
"affected": [],
"aliases": [
"CVE-2022-27572"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-11T20:15:00Z",
"severity": "CRITICAL"
},
"details": "Heap-based buffer overflow vulnerability in parser_ipma function of libsimba library prior to SMR Apr-2022 Release 1 allows code execution by remote attackers.",
"id": "GHSA-qrvw-696r-565v",
"modified": "2022-04-19T00:01:15Z",
"published": "2022-04-12T00:00:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27572"
},
{
"type": "WEB",
"url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2022\u0026month=4"
}
],
"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-QRVX-RH64-GCWX
Vulnerability from github – Published: 2022-05-13 01:14 – Updated: 2022-05-13 01:14UltraVNC revision 1211 has a heap buffer overflow vulnerability in VNC server code inside file transfer offer handler, which can potentially in result code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1212.
{
"affected": [],
"aliases": [
"CVE-2019-8274"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-08T23:29:00Z",
"severity": "CRITICAL"
},
"details": "UltraVNC revision 1211 has a heap buffer overflow vulnerability in VNC server code inside file transfer offer handler, which can potentially in result code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1212.",
"id": "GHSA-qrvx-rh64-gcwx",
"modified": "2022-05-13T01:14:20Z",
"published": "2022-05-13T01:14:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8274"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf"
},
{
"type": "WEB",
"url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-021-ultravnc-heap-based-buffer-overflow"
},
{
"type": "WEB",
"url": "https://www.us-cert.gov/ics/advisories/icsa-20-161-06"
}
],
"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-QRWC-RJ3X-FC9G
Vulnerability from github – Published: 2026-08-13 21:36 – Updated: 2026-08-13 21:36IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to an improper buffer write.
{
"affected": [],
"aliases": [
"CVE-2026-17476"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-13T21:17:43Z",
"severity": "MODERATE"
},
"details": "IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to an improper buffer write.",
"id": "GHSA-qrwc-rj3x-fc9g",
"modified": "2026-08-13T21:36:13Z",
"published": "2026-08-13T21:36:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17476"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7283283"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-QRWR-247V-VX29
Vulnerability from github – Published: 2022-05-14 01:33 – Updated: 2022-05-14 01:33In bta_ag_parse_cmer of bta_ag_cmd.cc in Android-7.0, Android-7.1.1, Android-7.1.2, Android-8.0, Android-8.1 and Android-9, there is a possible out-of-bounds write due to a missing bounds check. This could lead to remote code execution in the bluetooth server with no additional execution privileges needed. User interaction is not needed for exploitation. Android ID: A-112860487.
{
"affected": [],
"aliases": [
"CVE-2018-9583"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-02-11T23:29:00Z",
"severity": "CRITICAL"
},
"details": "In bta_ag_parse_cmer of bta_ag_cmd.cc in Android-7.0, Android-7.1.1, Android-7.1.2, Android-8.0, Android-8.1 and Android-9, there is a possible out-of-bounds write due to a missing bounds check. This could lead to remote code execution in the bluetooth server with no additional execution privileges needed. User interaction is not needed for exploitation. Android ID: A-112860487.",
"id": "GHSA-qrwr-247v-vx29",
"modified": "2022-05-14T01:33:54Z",
"published": "2022-05-14T01:33:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-9583"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2019-01-01.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106495"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QRX9-W68J-543J
Vulnerability from github – Published: 2022-05-13 01:21 – Updated: 2022-05-13 01:21A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-0590, CVE-2019-0591, CVE-2019-0593, CVE-2019-0605, CVE-2019-0607, CVE-2019-0610, CVE-2019-0640, CVE-2019-0644, CVE-2019-0651, CVE-2019-0652, CVE-2019-0655.
{
"affected": [],
"aliases": [
"CVE-2019-0642"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-05T23:29:00Z",
"severity": "HIGH"
},
"details": "A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge, aka \u0027Scripting Engine Memory Corruption Vulnerability\u0027. This CVE ID is unique from CVE-2019-0590, CVE-2019-0591, CVE-2019-0593, CVE-2019-0605, CVE-2019-0607, CVE-2019-0610, CVE-2019-0640, CVE-2019-0644, CVE-2019-0651, CVE-2019-0652, CVE-2019-0655.",
"id": "GHSA-qrx9-w68j-543j",
"modified": "2022-05-13T01:21:25Z",
"published": "2022-05-13T01:21:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-0642"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0642"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106911"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QRXX-5P97-W2CW
Vulnerability from github – Published: 2022-08-26 00:03 – Updated: 2022-08-28 00:00H3C Magic NX18 Plus NX18PV100R003 was discovered to contain a stack overflow via the function SetMobileAPInfoById.
{
"affected": [],
"aliases": [
"CVE-2022-36496"
],
"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 Magic NX18 Plus NX18PV100R003 was discovered to contain a stack overflow via the function SetMobileAPInfoById.",
"id": "GHSA-qrxx-5p97-w2cw",
"modified": "2022-08-28T00:00:30Z",
"published": "2022-08-26T00:03:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36496"
},
{
"type": "WEB",
"url": "https://github.com/Darry-lang1/vuln/tree/main/H3C/H3C%20NX18%20Plus/9"
}
],
"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
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.