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().
4111 vulnerabilities reference this CWE, most recent first.
CVE-2026-14759 (GCVE-0-2026-14759)
Vulnerability from cvelistv5 – Published: 2026-07-05 15:15 – Updated: 2026-07-06 13:20 X_Open Source
VLAI
EPSS
VEX
Title
radareorg radare2 RBinJava Line Number Table class.c r_bin_java_inner_classes_attr_calc_size heap-based overflow
Summary
A security flaw has been discovered in radareorg radare2 up to 6.1.6. This issue affects the function r_bin_java_inner_classes_attr_calc_size of the file shlr/java/class.c of the component RBinJava Line Number Table Parser. Performing a manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The patch is named cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87. To fix this issue, it is recommended to deploy a patch.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/376348 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/376348/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-14759 | third-party-advisory |
| https://vuldb.com/submit/850383 | third-party-advisory |
| https://github.com/radareorg/radare2/issues/26043 | exploitissue-tracking |
| https://github.com/radareorg/radare2/commit/cd62d… | patch |
| https://github.com/radareorg/radare2/ | product |
Impacted products
Credits
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CVE-2026-14610 (GCVE-0-2026-14610)
Vulnerability from cvelistv5 – Published: 2026-07-03 20:45 – Updated: 2026-07-06 16:28 X_Open Source
VLAI
EPSS
VEX
Title
Open Asset Import Library Assimp CSM File CSMLoader.cpp InternReadFile heap-based overflow
Summary
A flaw has been found in Open Asset Import Library Assimp up to 6.0.5. Impacted is the function Assimp::CSMImporter::InternReadFile of the file code/AssetLib/CSM/CSMLoader.cpp of the component CSM File Handler. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been published and may be used. Patch name: eb84eec580d3f4ba2f0fd87409b7d0744620f11e. Applying a patch is the recommended action to fix this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/376118 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/376118/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-14610 | third-party-advisory |
| https://vuldb.com/submit/844646 | third-party-advisory |
| https://github.com/assimp/assimp/issues/6622 | issue-tracking |
| https://github.com/assimp/assimp/pull/6649 | issue-trackingpatch |
| https://github.com/user-attachments/files/2723586… | exploit |
| https://github.com/assimp/assimp/commit/eb84eec58… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Open Asset Import Library | Assimp |
Affected:
6.0.0
Affected: 6.0.1 Affected: 6.0.2 Affected: 6.0.3 Affected: 6.0.4 Affected: 6.0.5 cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:* |
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CVE-2026-14355 (GCVE-0-2026-14355)
Vulnerability from cvelistv5 – Published: 2026-07-03 20:57 – Updated: 2026-07-06 13:57
VLAI
EPSS
VEX
Title
ext/openssl: Memory corruption in openssl_encrypt with AES-WRAP-PAD
Summary
In PHP versions 8.2.* before 8.2.32, 8.3.* before 8.3.32, 8.4.* before 8.4.23, 8.5.* before 8.5.8, the AES-WRAP-PAD algorithm implementation in OpenSSL extension contains a buffer allocation flaw. The output buffer for the AES key-wrap-with-padding operation is sized from the plaintext length without accounting for RFC 5649 expansion. This may cause OpenSSL to write beyond allocated memory, corrupting heap metadata and triggering application abort.
Severity
5.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based buffer overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/php/php-src/security/advisorie… | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2026… |
Impacted products
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CVE-2026-13590 (GCVE-0-2026-13590)
Vulnerability from cvelistv5 – Published: 2026-06-29 16:45 – Updated: 2026-06-30 15:34 X_Open Source
VLAI
EPSS
VEX
Title
seladb PcapPlusPlus Modbus Protocol ModbusLayer.h getLength heap-based overflow
Summary
A security flaw has been discovered in seladb PcapPlusPlus 25.05. This impacts the function pcpp::ModbusLayer::getLength in the library Packet++/header/ModbusLayer.h of the component Modbus Protocol Handler. The manipulation of the argument length results in heap-based buffer overflow. The attack can be launched remotely. A high complexity level is associated with this attack. The exploitability is said to be difficult. The exploit has been released to the public and may be used for attacks. The patch is identified as 4c90c3e3418a2b09dc82b7ca5775e9c1e22fe454. Applying a patch is advised to resolve this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/374593 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/374593/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-13590 | third-party-advisory |
| https://vuldb.com/submit/844483 | third-party-advisory |
| https://github.com/seladb/PcapPlusPlus/issues/2155 | issue-tracking |
| https://github.com/seladb/PcapPlusPlus/pull/2159 | issue-trackingpatch |
| https://github.com/user-attachments/files/2824904… | exploit |
| https://github.com/seladb/PcapPlusPlus/commit/4c9… | patch |
| https://github.com/seladb/PcapPlusPlus/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| seladb | PcapPlusPlus |
Affected:
25.05
cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-13589 (GCVE-0-2026-13589)
Vulnerability from cvelistv5 – Published: 2026-06-29 16:30 – Updated: 2026-06-29 17:22 X_Open Source
VLAI
EPSS
VEX
Title
seladb PcapPlusPlus Telnet Subnegotiation Packet TelnetLayer.cpp getSubCommand heap-based overflow
Summary
A vulnerability was identified in seladb PcapPlusPlus 25.05. This affects the function pcpp::TelnetLayer::getSubCommand of the file Packet++/src/TelnetLayer.cpp of the component Telnet Subnegotiation Packet Handler. The manipulation leads to heap-based buffer overflow. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is reported as difficult. The exploit is publicly available and might be used. The identifier of the patch is 98e671010bc7c87b95898c22ae289220ae92542b. It is recommended to apply a patch to fix this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/374592 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/374592/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-13589 | third-party-advisory |
| https://vuldb.com/submit/844482 | third-party-advisory |
| https://github.com/seladb/PcapPlusPlus/issues/2152 | issue-tracking |
| https://github.com/seladb/PcapPlusPlus/pull/2161 | issue-trackingpatch |
| https://github.com/user-attachments/files/2821457… | exploit |
| https://github.com/seladb/PcapPlusPlus/commit/98e… | patch |
| https://github.com/seladb/PcapPlusPlus/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| seladb | PcapPlusPlus |
Affected:
25.05
cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-13588 (GCVE-0-2026-13588)
Vulnerability from cvelistv5 – Published: 2026-06-29 16:15 – Updated: 2026-06-29 17:41 X_Open Source
VLAI
EPSS
VEX
Title
seladb PcapPlusPlus TLS Hello SSLHandshake.cpp getHandshakeVersion heap-based overflow
Summary
A vulnerability was determined in seladb PcapPlusPlus 25.05. The impacted element is the function pcpp::SSLClientHelloMessage::getHandshakeVersion of the file Packet++/src/SSLHandshake.cpp of the component TLS Hello Handler. Executing a manipulation of the argument handshakeVersion can lead to heap-based buffer overflow. It is possible to launch the attack remotely. This attack is characterized by high complexity. The exploitability is regarded as difficult. The exploit has been publicly disclosed and may be utilized. This patch is called 98e671010bc7c87b95898c22ae289220ae92542b. It is best practice to apply a patch to resolve this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/374591 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/374591/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-13588 | third-party-advisory |
| https://vuldb.com/submit/844481 | third-party-advisory |
| https://github.com/seladb/PcapPlusPlus/issues/2151 | issue-tracking |
| https://github.com/seladb/PcapPlusPlus/pull/2161 | issue-trackingpatch |
| https://github.com/user-attachments/files/2821347… | exploit |
| https://github.com/seladb/PcapPlusPlus/commit/98e… | patch |
| https://github.com/seladb/PcapPlusPlus/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| seladb | PcapPlusPlus |
Affected:
25.05
cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-13587 (GCVE-0-2026-13587)
Vulnerability from cvelistv5 – Published: 2026-06-29 16:00 – Updated: 2026-06-29 17:41
VLAI
EPSS
VEX
Title
seladb PcapPlusPlus LightPcapNg light_pcapng.c parse_by_block_type heap-based overflow
Summary
A vulnerability was found in seladb PcapPlusPlus 25.05. The affected element is the function parse_by_block_type of the file light_pcapng.c of the component LightPcapNg Parser. Performing a manipulation of the argument captured_packet_length results in heap-based buffer overflow. It is possible to initiate the attack remotely. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been made public and could be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/374590 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/374590/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-13587 | third-party-advisory |
| https://vuldb.com/submit/844479 | third-party-advisory |
| https://github.com/seladb/PcapPlusPlus/issues/2149 | issue-tracking |
| https://github.com/user-attachments/files/2820796… | exploit |
| https://github.com/seladb/PcapPlusPlus/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| seladb | PcapPlusPlus |
Affected:
25.05
cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:* |
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CVE-2026-13574 (GCVE-0-2026-13574)
Vulnerability from cvelistv5 – Published: 2026-06-29 14:15 – Updated: 2026-07-07 14:32 Disputed
VLAI
EPSS
VEX
Title
llvm llvm-project Bitcode File IntrinsicInst.cpp getBasePtr heap-based overflow
Summary
A vulnerability was determined in llvm llvm-project up to 22.1.6. This impacts the function GCRelocateInst::getBasePtr in the library llvm/lib/IR/IntrinsicInst.cpp of the component Bitcode File Handler. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. There are still doubts about whether this vulnerability truly exists. The LLVM project explains, that the reported behavior is outside its documented security scope and therefore not considered a security vulnerability.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/374582 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/374582/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-13574 | third-party-advisory |
| https://vuldb.com/submit/844468 | third-party-advisory |
| https://github.com/llvm/llvm-project/issues/199191 | issue-tracking |
| https://github.com/user-attachments/files/2814261… | broken-linkexploit |
| https://github.com/llvm/llvm-project/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| llvm | llvm-project |
Affected:
22.1.0
Affected: 22.1.1 Affected: 22.1.2 Affected: 22.1.3 Affected: 22.1.4 Affected: 22.1.5 Affected: 22.1.6 cpe:2.3:a:llvm:llvm-project:*:*:*:*:*:*:*:* |
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CVE-2026-12912 (GCVE-0-2026-12912)
Vulnerability from cvelistv5 – Published: 2026-06-29 16:31 – Updated: 2026-07-15 01:22
VLAI
EPSS
VEX
Title
Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image
Summary
A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:34890 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-12912 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2492871 | issue-trackingx_refsource_REDHAT |
| https://gitlab.com/libtiff/libtiff/-/merge_requests/873 | |
| https://gitlab.com/libtiff/libtiff/-/work_items/824 | |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected:
4.7.1-2.4.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| 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 Hardened Images |
cpe:/a:redhat:hummingbird:1 |
Date Public
2026-04-16 00:00
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CVE-2026-12844 (GCVE-0-2026-12844)
Vulnerability from cvelistv5 – Published: 2026-06-25 15:26 – Updated: 2026-06-25 19:35
VLAI
EPSS
VEX
Title
List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function
Summary
List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function.
pairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc <<= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer.
Any caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| DROLSKY | List::SomeUtils::XS |
Affected:
0 , < 0.59
(custom)
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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.