Common Weakness Enumeration
CWE-122
AllowedHeap-based Buffer Overflow
Abstraction: Variant · Status: Draft
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
6201 vulnerabilities reference this CWE, most recent first.
CVE-2026-94512 (GCVE-0-2026-94512)
Vulnerability from cvelistv5 – Published: 2026-10-13 20:37 – Updated: 2026-10-20 18:42
VLAI
EPSS
VEX
Title
SQL Server Remote Code Execution Vulnerability
Summary
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft SQL Server 2017 (GDR) |
Affected:
14.0.0 , < 14.0.2140.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2017 for x64-based Systems (CU31) |
Affected:
14.0.3006.16 , < 14.0.3560.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2019 (GDR) |
Affected:
15.0.0 , < 15.0.2200.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2019 for x64-based Systems (CU32) |
Affected:
15.0.4003.23 , < 15.0.4500.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2022 (GDR) |
Affected:
16.0.0 , < 16.0.1210.3
(custom)
|
|
| Microsoft | Microsoft SQL Server 2022 for x64-based Systems (CU27) |
Affected:
16.0.4003.1 , < 16.0.4305.5
(custom)
|
|
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (CU9) |
Affected:
17.0.4006.2 , < 17.0.5015.4
(custom)
|
|
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (GDR) |
Affected:
17.0.1050.2 , < 17.0.1145.4
(custom)
|
Date Public
2026-10-13 14:00
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CVE-2026-94424 (GCVE-0-2026-94424)
Vulnerability from cvelistv5 – Published: 2026-09-21 20:45 – Updated: 2026-09-22 18:04
VLAI
EPSS
VEX
Title
Moore Threads MTT S80 Driver Package IOCTL mtdispkm64.sys sub_140001000 heap-based overflow
Summary
A vulnerability has been found in Moore Threads MTT S80 Driver Package up to 340.150. Impacted is the function sub_140001000 in the library mtdispkm64.sys of the component IOCTL Handler. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 18:03 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/408150 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/408150/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-94424 | third-party-advisory |
| https://vuldb.com/submit/894806 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Moore Threads | MTT S80 Driver Package |
Affected:
340.150
cpe:2.3:a:moore_threads:mtt_s80_driver_package:*:*:*:*:*:*:*:* |
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CVE-2026-94127 (GCVE-0-2026-94127)
Vulnerability from cvelistv5 – Published: 2026-09-22 14:17 – Updated: 2026-09-23 03:55
VLAI
EPSS
VEX
Title
BIG-IP APM OAuth vulnerability
Summary
When a BIG-IP APM access policy and an OAuth profile are configured on a virtual server, specific malicious traffic can lead to remote code execution (RCE). This vulnerability is only present when BIG-IP APM is configured as an OAuth Authorization Server. Deployments using APM strictly as an OAuth Client / Resource Server (without OAuth authorization server profiles configured) are not affected by this vulnerability.
Impact:
This vulnerability allows an unauthenticated attacker to perform remote code execution. The BIG-IP system in Appliance mode is also vulnerable. This is a data plane issue; there is no control plane exposure.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://my.f5.com/manage/s/article/K000162605 | vendor-advisory |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
Date Public
2026-09-22 14:00
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CVE-2026-93962 (GCVE-0-2026-93962)
Vulnerability from cvelistv5 – Published: 2026-09-20 05:00 – Updated: 2026-09-22 16:06 X_Open Source
VLAI
EPSS
VEX
Title
Kamailio CDP Diameter Receiver receiver.c shm_malloc heap-based overflow
Summary
A weakness has been identified in Kamailio up to 5.8.8/6.0.7/6.1.4/6.2.0-dev1. The impacted element is the function shm_malloc of the file src/modules/cdp/receiver.c of the component CDP Diameter Receiver. Executing a manipulation can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 6.0.8 is sufficient to resolve this issue. This patch is called 38711a3e788de0130d48cb485578c482b57d9351/4f62235b6f477b649c5cc18b0c81b4e26c949b98/4f62235b6f477b649c5cc18b0c81b4e26c949b98. You should upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 16:06 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/407921 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/407921/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-93962 | third-party-advisory |
| https://vuldb.com/submit/944244 | third-party-advisory |
| https://github.com/kamailio/kamailio/issues/4876 | exploitissue-tracking |
| https://github.com/kamailio/kamailio/pull/4877 | issue-trackingpatch |
| https://github.com/kamailio/kamailio/commit/38711… | patch |
| https://github.com/kamailio/kamailio/releases/tag/6.0.8 | patch |
| https://github.com/kamailio/kamailio/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Kamailio |
Affected:
5.8.0
Affected: 5.8.1 Affected: 5.8.2 Affected: 5.8.3 Affected: 5.8.4 Affected: 5.8.5 Affected: 5.8.6 Affected: 5.8.7 Affected: 5.8.8 Affected: 6.0.0 Affected: 6.0.1 Affected: 6.0.2 Affected: 6.0.3 Affected: 6.0.4 Affected: 6.0.5 Affected: 6.0.6 Affected: 6.0.7 Affected: 6.1.0 Affected: 6.1.1 Affected: 6.1.2 Affected: 6.1.3 Affected: 6.1.4 Affected: 6.2.0-dev1 Unaffected: 6.0.8 cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:* |
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CVE-2026-93479 (GCVE-0-2026-93479)
Vulnerability from cvelistv5 – Published: 2026-10-14 14:40 – Updated: 2026-10-15 10:31
VLAI
EPSS
VEX
Title
NGINX map directive and regex matching vulnerability
Summary
A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and the root directive or access log format references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR.
Impact:
This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 03:57 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://my.f5.com/manage/s/article/K000162607 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| F5 | NGINX Plus |
Affected:
37.1.0 , < 37.1.0.1
(custom)
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|
| F5 | NGINX Open Source |
Affected:
1.31.2 , < 1.31.7
(custom)
Affected: 1.30.0 , < 1.30.6 (custom) |
Date Public
2023-01-01 00:00
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CVE-2026-92842 (GCVE-0-2026-92842)
Vulnerability from cvelistv5 – Published: 2026-09-25 21:11 – Updated: 2026-09-28 13:31
VLAI
EPSS
VEX
Title
OOB read / info leak in convert.* stream filters when line-break-chars contains NUL
Summary
The convert.base64-encode, convert.quoted-printable-encode and convert.quoted-printable-decode stream filters accept a line-break-chars option whose length is tracked separately from the string itself. The filter constructors duplicate the value with pestrdup(), which stops at the first NUL byte, while keeping the original length. When the filter later emits a line break it copies the recorded length out of the truncated allocation, reading past its end and placing adjacent heap bytes into the filter output.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 12:56 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/php/php-src/security/advisorie… | vendor-advisory |
Impacted products
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CVE-2026-92399 (GCVE-0-2026-92399)
Vulnerability from cvelistv5 – Published: 2026-09-16 16:15 – Updated: 2026-09-18 18:09 X_Open Source
VLAI
EPSS
VEX
Title
GPAC WebSocket rmt_ws.c rmt_client_handle_ws_frame heap-based overflow
Summary
A vulnerability was determined in GPAC 26.07.0. This affects the function rmt_client_handle_ws_frame of the file src/utils/rmt_ws.c of the component WebSocket Handler. Executing a manipulation of the argument payload_size can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.26 is able to mitigate this issue. This patch is called 37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12. Upgrading the affected component is recommended.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 18:09 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/405551 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/405551/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-92399 | third-party-advisory |
| https://vuldb.com/submit/940250 | third-party-advisory |
| https://github.com/gpac/gpac/issues/3860 | issue-tracking |
| https://github.com/user-attachments/files/3120803… | exploit |
| https://github.com/gpac/gpac/commit/37bccbb30cf53… | patch |
| https://github.com/gpac/gpac/releases/tag/abi-16.26 | patch |
| https://github.com/gpac/gpac/ | product |
Impacted products
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CVE-2026-92368 (GCVE-0-2026-92368)
Vulnerability from cvelistv5 – Published: 2026-09-29 15:40 – Updated: 2026-09-30 15:28
VLAI
EPSS
VEX
Title
Heap-Based Buffer Overflow in TeamViewer Session Recording Playback Leads to Remote Code Execution
Summary
TeamViewer Full Client and Host for Linux and macOS prior version 15.82 contain a heap-based buffer overflow vulnerability in the processing of .tvs session recording files. A size mismatch during decompression of recorded session data can result in out-of-bounds heap writes. By convincing a user to open a specially crafted session recording through the "Play or convert recorded session…" feature, an attacker may achieve arbitrary code execution with the privileges of the current user
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:15 UTC
CWE
- CWE-122 - Heap-based buffer overflow
References
1 reference
| URL | Tags |
|---|---|
| https://www.teamviewer.com/en/resources/trust-cen… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| TeamViewer | Full Client |
Affected:
15.70 , < 15.82
(custom)
|
|
| TeamViewer | Host |
Affected:
15.70 , < 15.82
(custom)
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CVE-2026-91964 (GCVE-0-2026-91964)
Vulnerability from cvelistv5 – Published: 2026-09-15 15:18 – Updated: 2026-09-16 15:51
VLAI
EPSS
VEX
Title
FreeRDP 2.0.0 through 3.30.0 Heap Buffer Overflow via RoutingToken
Summary
FreeRDP versions before 3.31.0 contain a heap-based buffer overflow in nego_send_negotiation_request when processing Server Redirection PDU messages with attacker-controlled LoadBalanceInfo fields. A malicious RDP server can trigger the overflow by sending an arbitrary-length field that gets written to a fixed 512-byte buffer without validation, causing client crashes or potential code execution when chained with memory disclosure.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 03:56 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-2.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-01 00:00
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CVE-2026-91767 (GCVE-0-2026-91767)
Vulnerability from cvelistv5 – Published: 2026-09-25 20:53 – Updated: 2026-09-28 13:31
VLAI
EPSS
VEX
Title
Heap-buffer-overflow in php_openssl_matches_wildcard_name on crafted server cert wildcard CN
Summary
php_openssl_matches_wildcard_name() in ext/openssl/xp_ssl.c underflows the length argument passed to memchr() when a TLS server certificate presents a wildcard name whose literal characters are together longer than the hostname being verified. A malicious server presenting such a certificate makes the PHP client read up to SIZE_MAX bytes past the end of a heap allocation. The path is reachable from any default client stream, because verify_peer_name is enabled by default.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 12:56 UTC
CWE
- CWE-122 - Heap-based buffer overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/php/php-src/security/advisorie… | vendor-advisory |
Impacted products
Date Public
2026-09-25 20:49
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Mitigation
Pre-design: Use a language or compiler that performs automatic bounds checking.
Mitigation
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
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-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
Implementation
Implement and perform bounds checking on input.
Mitigation
Implementation
Strategy: Libraries or Frameworks
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
Operation
Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.