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CWE-122

2,307 CVEs • Abstraction: Variant • Likelihood of Exploit: High

Heap-based Buffer Overflow

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().

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CVEs (2,307)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
12Windows 10 1607
Windows 10 1809Windows 10 21h2+9 more
Jul 2, 2025
Mar 11, 2025
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Role: Windows Hyper-V allows an authorized attacker to elevate privileges locally.
1Microsoft
11Windows 10 1607
Windows 10 1809Windows 10 21h2+8 more
Jul 2, 2025
Mar 11, 2025
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Role: Windows Hyper-V allows an authorized attacker to elevate privileges locally.
1Microsoft
15Windows 10 1507
Windows 10 1607Windows 10 1809+12 more
Jul 3, 2025
Mar 11, 2025
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows exFAT File System allows an unauthorized attacker to execute code locally.
1Adobe
1Substance 3d Designer
Apr 28, 2025
Mar 11, 2025
N/A· v4
7.8 HIGH· v3
N/A· v2
Substance3D - Designer versions 14.1 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue req...Show more
Substance3D - Designer versions 14.1 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
1Hdfgroup
1Hdf5
Mar 13, 2025
Mar 10, 2025
2.3 LOW· v4
8.1 HIGH· v3
5.1 MEDIUM· v2
A vulnerability, which was classified as critical, was found in HDF5 1.14.6. Affected is the function H5SM_delete of the file H5SM.c of the component h5 File Handler. The manipulation leads to heap-based buffer overflow....Show more
A vulnerability, which was classified as critical, was found in HDF5 1.14.6. Affected is the function H5SM_delete of the file H5SM.c of the component h5 File Handler. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used.Show less
1Assimp
1Assimp
Mar 13, 2025
Mar 10, 2025
5.3 MEDIUM· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp 5.4.3. This issue affects the function Assimp::BaseImporter::ConvertToUTF8 of the file BaseImporter.cpp of the compone...Show more
A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp 5.4.3. This issue affects the function Assimp::BaseImporter::ConvertToUTF8 of the file BaseImporter.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.Show less
1Mackron
1Miniaudio
Aug 26, 2025
Mar 4, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An out-of-bounds write vulnerability exists in the ma_dr_flac__decode_samples__lpc functionality of Miniaudio miniaudio v0.11.21. A specially crafted .flac file can lead to memory corruption. An attacker can provide a ma...Show more
An out-of-bounds write vulnerability exists in the ma_dr_flac__decode_samples__lpc functionality of Miniaudio miniaudio v0.11.21. A specially crafted .flac file can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Mar 4, 2025
N/A· v4
8.2 HIGH· v3
N/A· v2
Memory safety bugs present in Firefox 135 and Thunderbird 135. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code....Show more
Memory safety bugs present in Firefox 135 and Thunderbird 135. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 136 and Thunderbird 136.Show less
1Rizin
1Rizin
Aug 25, 2025
Mar 1, 2025
4.8 MEDIUM· v4
7.8 HIGH· v3
4.3 MEDIUM· v2
A vulnerability, which was classified as critical, was found in rizinorg rizin up to 0.8.0. This affects the function rz_utf8_encode in the library /librz/util/utf8.c. The manipulation leads to heap-based buffer overflow...Show more
A vulnerability, which was classified as critical, was found in rizinorg rizin up to 0.8.0. This affects the function rz_utf8_encode in the library /librz/util/utf8.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue.Show less
1Deltaww
1Cncsoft G2
Jul 11, 2025
Feb 26, 2025
8.4 HIGH· v4
7.8 HIGH· v3
N/A· v2
Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. If a target visits a malicious page or opens a malicious file an attacker...Show more
Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. If a target visits a malicious page or opens a malicious file an attacker can leverage this vulnerability to execute code in the context of the current process.Show less
1Zoom
5Meeting Software Development Kit
RoomsWorkplace+2 more
Aug 20, 2025
Feb 25, 2025
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Buffer overflow in some Zoom Workplace Apps and SDKs may allow an authenticated user to conduct a denial of service via network access.
1Zoom
7Meeting Software Development Kit
RoomsRooms Controller+4 more
Mar 5, 2025
Feb 25, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Buffer overflow in some Zoom Apps may allow an authenticated user to conduct an escalation of privilege via network access.
1Dlink
1Dap 1320 Firmware
Feb 25, 2025
Feb 21, 2025
8.7 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability classified as critical was found in D-Link DAP-1320 1.00. Affected by this vulnerability is the function set_ws_action of the file /dws/api/. The manipulation leads to heap-based buffer overflow. The atta...Show more
A vulnerability classified as critical was found in D-Link DAP-1320 1.00. Affected by this vulnerability is the function set_ws_action of the file /dws/api/. The manipulation leads to heap-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.Show less
1Cisco
1Openh264
May 6, 2025
Feb 20, 2025
8.6 HIGH· v4
7.5 HIGH· v3
N/A· v2
OpenH264 is a free license codec library which supports H.264 encoding and decoding. A vulnerability in the decoding functions of OpenH264 codec library could allow a remote, unauthenticated attacker to trigger a heap ov...Show more
OpenH264 is a free license codec library which supports H.264 encoding and decoding. A vulnerability in the decoding functions of OpenH264 codec library could allow a remote, unauthenticated attacker to trigger a heap overflow. This vulnerability is due to a race condition between a Sequence Parameter Set (SPS) memory allocation and a subsequent non Instantaneous Decoder Refresh (non-IDR) Network Abstraction Layer (NAL) unit memory usage. An attacker could exploit this vulnerability by crafting a malicious bitstream and tricking a victim user into processing an arbitrary video containing the malicious bistream. An exploit could allow the attacker to cause an unexpected crash in the victim's user decoding client and, possibly, perform arbitrary commands on the victim's host by abusing the heap overflow. This vulnerability affects OpenH264 2.5.0 and earlier releases. Both Scalable Video Coding (SVC) mode and Advanced Video Coding (AVC) mode are affected by this vulnerability. OpenH264 software releases 2.6.0 and later contained the fix for this vulnerability. Users are advised to upgrade. There are no known workarounds for this vulnerability. ### For more information If you have any questions or comments about this advisory: * [Open an issue in cisco/openh264](https://github.com/cisco/openh264/issues) * Email Cisco Open Source Security ([oss-security@cisco.com](mailto:oss-security@cisco.com)) and Cisco PSIRT ([psirt@cisco.com](mailto:psirt@cisco.com)) ### Credits: * **Research:** Octavian Guzu and Andrew Calvano of Meta * **Fix ideation:** Philipp Hancke and Shyam Sadhwani of Meta * **Fix implementation:** Benzheng Zhang (@BenzhengZhang) * **Release engineering:** Benzheng Zhang (@BenzhengZhang)Show less
1Google
1Chrome
Apr 7, 2025
Feb 19, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap buffer overflow in GPU in Google Chrome on Android prior to 133.0.6943.126 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
1Google
1Chrome
Apr 7, 2025
Feb 19, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap buffer overflow in V8 in Google Chrome prior to 133.0.6943.126 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
-
-
Feb 19, 2025
Feb 19, 2025
5.1 MEDIUM· v4
N/A· v3
N/A· v2
Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory
-
-
Feb 19, 2025
Feb 18, 2025
N/A· v4
5.3 MEDIUM· v3
N/A· v2
A heap buffer overflow vulnerability in FFmpeg before commit 4bf784c allows attackers to trigger a memory corruption via supplying a crafted media file in avformat when processing tile grid group streams. This can lead t...Show more
A heap buffer overflow vulnerability in FFmpeg before commit 4bf784c allows attackers to trigger a memory corruption via supplying a crafted media file in avformat when processing tile grid group streams. This can lead to a Denial of Service (DoS).Show less
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-
Mar 19, 2025
Feb 13, 2025
N/A· v4
5.5 MEDIUM· v3
N/A· v2
A Structured Exception Handler based buffer overflow vulnerability exists in Effectmatrix Total Video Converter Command Line (TVCC) 2.50 when a specially crafted file is passed to the -ff parameter. The vulnerability occ...Show more
A Structured Exception Handler based buffer overflow vulnerability exists in Effectmatrix Total Video Converter Command Line (TVCC) 2.50 when a specially crafted file is passed to the -ff parameter. The vulnerability occurs due to improper handling of file input with overly long characters, leading to memory corruption. This can result in arbitrary code execution or denial of service.Show less
1Mercedes Benz
1Headunit Ntg6 Mercedes Benz User Experience
Jun 27, 2025
Feb 13, 2025
N/A· v4
4.6 MEDIUM· v3
N/A· v2
An issue was discovered in Mercedes Benz NTG (New Telematics Generation) 6. A possible heap buffer overflow exists in the user data import/export function of NTG 6 head units. To perform this attack, local access to the...Show more
An issue was discovered in Mercedes Benz NTG (New Telematics Generation) 6. A possible heap buffer overflow exists in the user data import/export function of NTG 6 head units. To perform this attack, local access to the USB interface of the car is needed. With prepared data, an attacker can cause the User-Data service to fail. The failed service instance will restart automatically.Show less