Common Weakness Enumeration

CWE-787

Allowed-with-Review

Out-of-bounds Write

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product writes data past the end, or before the beginning, of the intended buffer.

16801 vulnerabilities reference this CWE, most recent first.

CVE-2026-121617 (GCVE-0-2026-121617)

Vulnerability from cvelistv5 – Published: 2026-11-04 02:45 – Updated: 2026-11-04 02:45 Unsupported When Assigned

Title

Linksys E5600 Header upload_fw.cgi init_multipart out-of-bounds write

Summary

A security flaw has been discovered in Linksys E5600 1.1.0.26. Affected by this issue is the function init_multipart of the file /cgi-bin/upload_fw.cgi of the component Header Parser. The manipulation results in out-of-bounds write. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:C

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:C

CWE

CWE-787 - Out-of-bounds Write
CWE-119 - Memory Corruption

Assigner

VulDB CNA under the mitre root

CNA scorecard B 83/100 over 3789 records in the last 180 days details

References

6 references

URL	Tags
https://vuldb.com/vuln/430465	vdb-entrytechnical-description
https://vuldb.com/vuln/430465/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-121617	third-party-advisory
https://vuldb.com/submit/1023313	third-party-advisory
https://github.com/Zimo-666/E5600-cves/tree/main/…	exploit
https://www.linksys.com/	product

Impacted products

1 product

Vendor	Product	Version
Linksys	E5600	Affected: 1.1.0.26 cpe:2.3:o:linksys:e5600_firmware::::::::

Credits

liuyingqi (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

{
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    "cna": {
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          "url": "https://github.com/Zimo-666/E5600-cves/tree/main/04-upload-fw-multipart-overflow"
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CVE-2026-121616 (GCVE-0-2026-121616)

Vulnerability from cvelistv5 – Published: 2026-11-04 02:30 – Updated: 2026-11-04 02:30 Unsupported When Assigned

Title

Linksys E5600 JSON Request mesh_login.cgi strcpy out-of-bounds write

Summary

A vulnerability was identified in Linksys E5600 1.1.0.26. Affected by this vulnerability is the function strcpy of the file /cgi-bin/mesh_login.cgi of the component JSON Request Parser. The manipulation of the argument username/password/token/source/cn/action leads to out-of-bounds write. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C

5.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C

CWE

CWE-787 - Out-of-bounds Write
CWE-119 - Memory Corruption

Assigner

VulDB CNA under the mitre root

CNA scorecard B 83/100 over 3789 records in the last 180 days details

References

6 references

URL	Tags
https://vuldb.com/vuln/430464	vdb-entrytechnical-description
https://vuldb.com/vuln/430464/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-121616	third-party-advisory
https://vuldb.com/submit/1023312	third-party-advisory
https://github.com/Zimo-666/E5600-cves/tree/main/…	exploit
https://www.linksys.com/	product

Impacted products

1 product

Vendor	Product	Version
Linksys	E5600	Affected: 1.1.0.26 cpe:2.3:o:linksys:e5600_firmware::::::::

Credits

liuyingqi (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

{
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        {
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            "cpe:2.3:o:linksys:e5600_firmware:*:*:*:*:*:*:*:*"
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CVE-2026-121513 (GCVE-0-2026-121513)

Vulnerability from cvelistv5 – Published: 2026-11-03 14:18 – Updated: 2026-11-03 15:29

Title

Out-of-bounds Write in µD3TN

Summary

Off-by-one Heap Overflow in µD3TN v0.15.1 SPP Parser allows Unauthenticated Remote Attacker to Reliably Cause DoS

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-03 15:16 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitLab CNA under the mitre root

CNA scorecard B 75/100 over 304 records in the last 180 days details

References

1 reference

URL	Tags
https://gitlab.com/d3tn/ud3tn/-/work_items/288

Impacted products

1 product

Vendor	Product	Version
D3TN GmbH	µD3TN	Affected: 0 , < 0.15.2 (semver)

Credits

andrei.visoiu@software.imdea.org

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-121513",
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CVE-2026-121510 (GCVE-0-2026-121510)

Vulnerability from cvelistv5 – Published: 2026-11-03 14:18 – Updated: 2026-11-03 15:29

Title

Out-of-bounds Write in µD3TN

Summary

Remote Unauthenticated Heap Out-of-Bounds Write in µD3TN BPv6 Administrative Record Parser allows Unauthenticated Remote Attacker to Reliably Cause DoS

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-03 15:15 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitLab CNA under the mitre root

CNA scorecard B 75/100 over 304 records in the last 180 days details

References

1 reference

URL	Tags
https://gitlab.com/d3tn/ud3tn/-/work_items/289

Impacted products

1 product

Vendor	Product	Version
D3TN GmbH	µD3TN	Affected: 0 , < 0.15.2 (semver)

Credits

riccardo.nannini@anvilsecure.com

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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CVE-2026-121506 (GCVE-0-2026-121506)

Vulnerability from cvelistv5 – Published: 2026-11-03 14:17 – Updated: 2026-11-03 15:29

Title

Out-of-bounds Write in NTPsec

Summary

An out-of-bounds read and write in NTS client extension field parsing (extens_client_recv) in NTPsec before 1.2.5 allows a remote attacker who can send NTP server-mode replies to an NTS client to corrupt heap memory and crash ntpd, and, combined with the NTS-KE client out-of-bounds read fixed in 1.2.4, to bypass NTS authentication and set the client's time, via an NTS Authenticator and Encrypted Extension Fields field whose nonce length exceeds the field.

Severity

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-03 15:15 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitLab CNA under the mitre root

CNA scorecard B 75/100 over 304 records in the last 180 days details

References

2 references

URL	Tags
https://gitlab.com/NTPsec/ntpsec/-/commit/0a36941…
https://gitlab.com/NTPsec/ntpsec/-/work_items/902

Impacted products

1 product

Vendor	Product	Version
NTPsec	NTPsec	Affected: 1.1.4 , < 1.2.5 (semver)

Credits

Found by OSS-Fuzz (issue 393742176); Erica Windisch (Cyberdione Labs) analyzed its impact

Show details on NVD website

JSON

To clipboard

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CVE-2026-120959 (GCVE-0-2026-120959)

Vulnerability from cvelistv5 – Published: 2026-11-03 20:18 – Updated: 2026-11-03 20:18

Title

MongoDB Atlas SQL ODBC Driver uses ignored SQLBindCol BufferLength as fixed-width row-array stride, causing out-of-bounds writes

Summary

A memory-handling flaw in the MongoDB Atlas SQL ODBC Driver can cause values returned for a query to be written outside the bounds of a buffer provided by the calling application. A party able to influence the values a query returns may cause data to be placed at an unintended location in the client application's memory, which may result in unintended modification of that memory or termination of the client process. Reaching this condition depends on a specific, application-chosen way of requesting several result rows at once.

Severity

2.1 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L

CWE

CWE-787 - Out-of-bounds Write

Assigner

mongodb CNA under the mitre root

CNA scorecard C 70/100 over 235 records in the last 180 days details

References

2 references

URL	Tags
https://www.mongodb.com/docs/sql-interface/changelog/
https://jira.mongodb.org/browse/SQL-3458

Impacted products

1 product

Vendor	Product	Version
MongoDB	Atlas SQL	Affected: 1.3.0 , < 3.0.1 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-120952 (GCVE-0-2026-120952)

Vulnerability from cvelistv5 – Published: 2026-11-03 20:16 – Updated: 2026-11-03 20:16

Title

MongoDB Atlas SQL ODBC Driver writes 48-byte Extended JSON into fixed 16-byte SQL_C_GUID target, causing a 32-byte out-of-bounds write

Summary

An out-of-bounds write in the MongoDB Atlas SQL ODBC Driver may be triggered when a value of a particular database type is retrieved into a fixed-width client-side target. The driver produces a textual form of the value that is longer than the fixed target the ODBC interface defines, and copies it without limiting the copy to the target's real size. A database user with basic write privileges can influence part of the data written outside the target, which may corrupt memory in the application using the driver and cause that application to terminate unexpectedly.

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

CWE

CWE-787 - Out-of-bounds Write

Assigner

mongodb CNA under the mitre root

CNA scorecard C 70/100 over 235 records in the last 180 days details

References

2 references

URL	Tags
https://www.mongodb.com/docs/sql-interface/changelog/
https://jira.mongodb.org/browse/SQL-3539

Impacted products

1 product

Vendor	Product	Version
MongoDB	Atlas SQL ODBC Driver	Affected: 0.0.1 , < 3.0.1 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-120831 (GCVE-0-2026-120831)

Vulnerability from cvelistv5 – Published: 2026-11-03 01:55 – Updated: 2026-11-03 15:08

Title

Libslirp: libslirp: queue pointer corruption in if_output() leading to denial of service

Summary

A flaw was found in libslirp in if_output(). When moving a session from the fast queue to the batch queue, the code unlinked and reinserted an arbitrary packet via ifm->m_nextpkt instead of the session queue head, corrupting queue pointers. A guest generating burst traffic could crash the host networking process, causing a denial of service.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-03 15:08 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

3 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-120831	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2565425	issue-trackingx_refsource_REDHAT
https://gitlab.freedesktop.org/slirp/libslirp/-/c…

Impacted products

5 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4
Red Hat	Red Hat OpenShift Container Platform 5	cpe:/a:redhat:openshift:5

Date Public

2026-10-30 00:00

Credits

Red Hat would like to thank Piyusha Akash (Manifold Operations) for reporting this issue.

Show details on NVD website

JSON

To clipboard

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CVE-2026-120456 (GCVE-0-2026-120456)

Vulnerability from cvelistv5 – Published: 2026-11-02 14:29 – Updated: 2026-11-02 17:31

Title

L-SMASH through 2.14.5 Heap Out-of-Bounds Write via hdlr and url Boxes

Summary

L-SMASH through 2.14.5 contains a heap out-of-bounds write vulnerability in isom_read_hdlr() and isom_read_dref_entry() in core/read.c triggered by oversized box sizes. Attackers can supply crafted MP4 or MOV files declaring hdlr or url box sizes larger than remaining data, stalling the stream position and corrupting heap memory to crash applications.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

6.1 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-02 17:04 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7300 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/l-smash/l-smash/issues/112	issue-tracking
https://github.com/l-smash/l-smash/commit/805ee3c…	patch
https://github.com/l-smash/l-smash/blob/v2.14.5/c…	technical-description
https://github.com/l-smash/l-smash/blob/v2.14.5/c…	technical-description
https://hackmd.io/@haindpwn/lsmash-hdlr-dref-box-…	technical-description
https://www.vulncheck.com/advisories/l-smash-thro…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
L-SMASH	L-SMASH	Affected: 0 , ≤ 2.14.5 (semver)

Date Public

2026-10-22 00:00

Credits

HaiND from the Post and Telecommunication Institute of Technology Yusuke Nakamura

Show details on NVD website

JSON

To clipboard

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CVE-2026-120455 (GCVE-0-2026-120455)

Vulnerability from cvelistv5 – Published: 2026-11-02 14:29 – Updated: 2026-11-02 14:29

Title

rapidyaml through 0.16.0 Out-of-Bounds Write via ParseEngine::_add_annotation()

Summary

rapidyaml through 0.16.0 contains an out-of-bounds write vulnerability in ParseEngine::_add_annotation() that allows attackers to corrupt memory by supplying YAML with excess anchors or tags. Attackers can submit YAML with consecutive anchors or tags to overflow the fixed two-element annotation array in release builds, corrupting stack memory and crashing the process.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

6.1 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

CWE

CWE-787 - Out-of-bounds Write

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7300 records in the last 180 days details

References

7 references

URL	Tags
https://github.com/biojppm/rapidyaml/issues/680	issue-tracking
https://github.com/biojppm/rapidyaml/blob/v0.16.0…	technical-description
https://github.com/biojppm/rapidyaml/blob/v0.16.0…	technical-description
https://github.com/biojppm/rapidyaml/blob/v0.16.0…	technical-description
https://github.com/biojppm/rapidyaml/releases/tag…	release-notes
https://hackmd.io/@haindpwn/rapidyaml-parser-anno…	technical-description
https://www.vulncheck.com/advisories/rapidyaml-th…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
biojppm	rapidyaml	Affected: 0 , ≤ 0.16.0 (semver)

Date Public

2026-11-01 00:00

Credits

HaiND from the Post and Telecommunication Institute of Technology

Show details on NVD website

JSON

To clipboard

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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.

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