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
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updated Affected_Resources, Functional_Areas, References
updated Applicable_Platforms, Detection_Factors, References, Relationships
updated Mapping_Notes
updated Dimensions, Observed_Examples, References, Relationships, Taxonomy_Mappings
17047 vulnerabilities reference this CWE, most recent first.
GHSA-V2JR-9J8F-XXPP
Vulnerability from github – Published: 2022-05-24 17:41 – Updated: 2022-05-24 17:41This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of NEF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-11194.
{
"affected": [],
"aliases": [
"CVE-2020-17421"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-02-09T18:15:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of NEF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-11194.",
"id": "GHSA-v2jr-9j8f-xxpp",
"modified": "2022-05-24T17:41:24Z",
"published": "2022-05-24T17:41:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-17421"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1332"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-V2MJ-WWF5-5HQJ
Vulnerability from github – Published: 2022-05-24 17:02 – Updated: 2022-05-24 17:02An exploitable out-of-bounds write vulnerability exists in the igcore19d.dll TIFdecodethunderscan function of Accusoft ImageGear 19.3.0 library. A specially crafted TIFF file can cause an out of bounds write, resulting in a remote code execution. An attacker needs to provide a malformed file to the victim to trigger the vulnerability.
{
"affected": [],
"aliases": [
"CVE-2019-5083"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-12-03T22:15:00Z",
"severity": "MODERATE"
},
"details": "An exploitable out-of-bounds write vulnerability exists in the igcore19d.dll TIFdecodethunderscan function of Accusoft ImageGear 19.3.0 library. A specially crafted TIFF file can cause an out of bounds write, resulting in a remote code execution. An attacker needs to provide a malformed file to the victim to trigger the vulnerability.",
"id": "GHSA-v2mj-wwf5-5hqj",
"modified": "2022-05-24T17:02:37Z",
"published": "2022-05-24T17:02:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5083"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0875"
}
],
"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-V2PX-6GJV-7Q9W
Vulnerability from github – Published: 2022-12-21 21:30 – Updated: 2022-12-21 21:30In FacilityLock::Parse of simdata.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-241231970References: N/A
{
"affected": [],
"aliases": [
"CVE-2022-42502"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-16T16:15:00Z",
"severity": "MODERATE"
},
"details": "In FacilityLock::Parse of simdata.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-241231970References: N/A",
"id": "GHSA-v2px-6gjv-7q9w",
"modified": "2022-12-21T21:30:15Z",
"published": "2022-12-21T21:30:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42502"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2022-12-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V2R5-7H93-6HPM
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 DEleteusergroup.
{
"affected": [],
"aliases": [
"CVE-2022-36499"
],
"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 DEleteusergroup.",
"id": "GHSA-v2r5-7h93-6hpm",
"modified": "2022-08-28T00:00:30Z",
"published": "2022-08-26T00:03:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36499"
},
{
"type": "WEB",
"url": "https://github.com/Darry-lang1/vuln/tree/main/H3C/H3C%20NX18%20Plus/19"
}
],
"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-V2RP-WXM3-8HXP
Vulnerability from github – Published: 2026-03-25 03:31 – Updated: 2026-04-23 21:31An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to modify protected parts of the file system.
{
"affected": [],
"aliases": [
"CVE-2026-28825"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T01:17:07Z",
"severity": "MODERATE"
},
"details": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to modify protected parts of the file system.",
"id": "GHSA-v2rp-wxm3-8hxp",
"modified": "2026-04-23T21:31:16Z",
"published": "2026-03-25T03:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28825"
},
{
"type": "WEB",
"url": "https://blog.calif.io/p/mad-bugs-an-apple-kernel-bug-brought"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126794"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126795"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126796"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V2RR-WW6M-W47M
Vulnerability from github – Published: 2022-06-16 00:00 – Updated: 2022-06-24 00:00In ce_t4t_data_cback of ce_t4t.cc, there is a possible out of bounds write due to a double free. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-221862119
{
"affected": [],
"aliases": [
"CVE-2022-20127"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-15T13:15:00Z",
"severity": "CRITICAL"
},
"details": "In ce_t4t_data_cback of ce_t4t.cc, there is a possible out of bounds write due to a double free. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-221862119",
"id": "GHSA-v2rr-ww6m-w47m",
"modified": "2022-06-24T00:00:29Z",
"published": "2022-06-16T00:00:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-20127"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2022-06-01"
}
],
"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-V2V8-X9VM-WR66
Vulnerability from github – Published: 2022-05-13 01:05 – Updated: 2022-05-13 01:05Heap-based buffer overflow in compression-pointer processing in core/ngx_resolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response.
{
"affected": [],
"aliases": [
"CVE-2011-4315"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2011-12-08T20:55:00Z",
"severity": "MODERATE"
},
"details": "Heap-based buffer overflow in compression-pointer processing in core/ngx_resolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response.",
"id": "GHSA-v2v8-x9vm-wr66",
"modified": "2022-05-13T01:05:17Z",
"published": "2022-05-13T01:05:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-4315"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070569.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00005.html"
},
{
"type": "WEB",
"url": "http://openwall.com/lists/oss-security/2011/11/17/10"
},
{
"type": "WEB",
"url": "http://openwall.com/lists/oss-security/2011/11/17/8"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/47097"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/48577"
},
{
"type": "WEB",
"url": "http://security.gentoo.org/glsa/glsa-201203-22.xml"
},
{
"type": "WEB",
"url": "http://trac.nginx.org/nginx/changeset/4268/nginx"
},
{
"type": "WEB",
"url": "http://www.nginx.org/en/CHANGES-1.0"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/50710"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-V2W7-XJPQ-RMV5
Vulnerability from github – Published: 2022-05-24 17:17 – Updated: 2026-08-11 21:31A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) handler of Cisco Firepower Threat Defense (FTD) Software when running on the Cisco Firepower 1000 Series platform could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a communication error between internal functions. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause a buffer underrun, which leads to a crash. The crash causes the affected device to reload.
{
"affected": [],
"aliases": [
"CVE-2020-3283"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-05-06T17:15:00Z",
"severity": "MODERATE"
},
"details": "A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) handler of Cisco Firepower Threat Defense (FTD) Software when running on the Cisco Firepower 1000 Series platform could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a communication error between internal functions. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause a buffer underrun, which leads to a crash. The crash causes the affected device to reload.",
"id": "GHSA-v2w7-xjpq-rmv5",
"modified": "2026-08-11T21:31:39Z",
"published": "2022-05-24T17:17:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-3283"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls-dos-4v5nmWtZ"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V32R-MRMH-QXVX
Vulnerability from github – Published: 2022-11-23 18:30 – Updated: 2022-11-26 06:31TOTOLINK LR350 V9.3.5u.6369_B20220309 contains a post-authentication buffer overflow via parameter ip in the setDiagnosisCfg function.
{
"affected": [],
"aliases": [
"CVE-2022-44253"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-11-23T16:15:00Z",
"severity": "HIGH"
},
"details": "TOTOLINK LR350 V9.3.5u.6369_B20220309 contains a post-authentication buffer overflow via parameter ip in the setDiagnosisCfg function.",
"id": "GHSA-v32r-mrmh-qxvx",
"modified": "2022-11-26T06:31:17Z",
"published": "2022-11-23T18:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-44253"
},
{
"type": "WEB",
"url": "https://brief-nymphea-813.notion.site/LR350-bof-setDiagnosisCfg-bdae239f42e64a48a57b070b5bf17456"
}
],
"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-V333-CPP7-H389
Vulnerability from github – Published: 2026-03-21 15:33 – Updated: 2026-03-21 15:33Encrypt PDF 2.3 contains a buffer overflow vulnerability that allows local attackers to crash the application by inputting excessively long strings into password fields. Attackers can paste a 1000-byte buffer into the User Password or Master Password field in the Settings dialog to trigger an application crash when importing PDF files.
{
"affected": [],
"aliases": [
"CVE-2019-25550"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-21T13:16:17Z",
"severity": "MODERATE"
},
"details": "Encrypt PDF 2.3 contains a buffer overflow vulnerability that allows local attackers to crash the application by inputting excessively long strings into password fields. Attackers can paste a 1000-byte buffer into the User Password or Master Password field in the Settings dialog to trigger an application crash when importing PDF files.",
"id": "GHSA-v333-cpp7-h389",
"modified": "2026-03-21T15:33:23Z",
"published": "2026-03-21T15:33:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-25550"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/46871"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/encrypt-pdf-denial-of-service-via-buffer-overflow"
},
{
"type": "WEB",
"url": "http://www.verypdf.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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"
}
]
}
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.