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CWE-122

3,706 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 (3,706)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
5Windows Server 2012
Windows Server 2016Windows Server 2019+2 more
Jun 17, 2026
Mar 10, 2026
N/A· v4
8.0 HIGH· v3
N/A· v2
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
1Microsoft
5365 Apps
ExcelOffice+2 more
Jun 17, 2026
Mar 10, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jun 17, 2026
Mar 10, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to elevate privileges over an adjacent network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jun 17, 2026
Mar 10, 2026
N/A· v4
8.0 HIGH· v3
N/A· v2
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
1Microsoft
6Windows Server 2012
Windows Server 2016Windows Server 2019+3 more
Jun 17, 2026
Mar 10, 2026
N/A· v4
8.0 HIGH· v3
N/A· v2
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
1Microsoft
2Windows 10 21h2
Windows 10 22h2
Jun 17, 2026
Mar 10, 2026
N/A· v4
6.8 MEDIUM· v3
N/A· v2
Heap-based buffer overflow in Windows Mobile Broadband allows an unauthorized attacker to execute code with a physical attack.
1Microsoft
5Windows 11 24h2
Windows 11 25h2Windows 11 26h1+2 more
Jun 17, 2026
Mar 10, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.
2Microsof
Microsoft
2Linux Diagnostic Extension
Linux Diagnostic Extension
Jun 17, 2026
Mar 10, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Azure Linux Virtual Machines allows an authorized attacker to elevate privileges locally.
1Imagemagick
1Imagemagick
Jun 17, 2026
Mar 10, 2026
N/A· v4
6.1 MEDIUM· v3
N/A· v2
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a 32-bit unsigned integer overflow in the XWD (X Windows) encoder can cause an unde...Show more
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a 32-bit unsigned integer overflow in the XWD (X Windows) encoder can cause an undersized heap buffer allocation. When writing a extremely large image an out of bounds heap write can occur. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.Show less
1Imagemagick
1Imagemagick
Jun 17, 2026
Mar 10, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a crafted image could cause an out of bounds heap write inside the WaveletDenoiseIm...Show more
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a crafted image could cause an out of bounds heap write inside the WaveletDenoiseImage method. When processing a crafted image with the -wavelet-denoise operation an out of bounds write can occur. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.Show less
1Imagemagick
1Imagemagick
Jun 17, 2026
Mar 10, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16, a heap-based buffer overflow in the UHDR encoder can happen due to truncation of a value and it w...Show more
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16, a heap-based buffer overflow in the UHDR encoder can happen due to truncation of a value and it would allow an out of bounds write. This vulnerability is fixed in 7.1.2-16.Show less
1Imagemagick
1Imagemagick
Jun 17, 2026
Mar 10, 2026
N/A· v4
6.8 MEDIUM· v3
N/A· v2
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, A heap-buffer-overflow vulnerability exists in the PCL encode due to an undersized...Show more
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, A heap-buffer-overflow vulnerability exists in the PCL encode due to an undersized output buffer allocation. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.Show less
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-
Jun 17, 2026
Mar 8, 2026
1.9 LOW· v4
5.3 MEDIUM· v3
4.3 MEDIUM· v2
A flaw has been found in pnggroup libpng up to 1.6.55. Affected by this vulnerability is the function do_pnm2png of the file contrib/pngminus/pnm2png.c of the component pnm2png. This manipulation of the argument width/he...Show more
A flaw has been found in pnggroup libpng up to 1.6.55. Affected by this vulnerability is the function do_pnm2png of the file contrib/pngminus/pnm2png.c of the component pnm2png. This manipulation of the argument width/height causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.Show less
1Huawei
1Harmonyos
Jun 17, 2026
Mar 5, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Buffer overflow vulnerability in the scanning module. Impact: Successful exploitation of this vulnerability may affect availability.
1Google
1Chrome
Jun 17, 2026
Mar 4, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap buffer overflow in WebCodecs in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)
1Cisco
4Cyber Vision
Secure Firewall Threat DefenseSnort+++1 more
Aug 20, 2026
Mar 4, 2026
N/A· v4
5.8 MEDIUM· v3
N/A· v2
Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to impr...Show more
Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to improper range checking when decompressing VBA data, which is user controlled. An attacker could exploit this vulnerability by sending crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause an overflow of heap data, which could cause a DoS condition.Show less
1Mackron
1Dr Libs
Jul 14, 2026
Mar 3, 2026
6.8 MEDIUM· v4
7.8 HIGH· v3
N/A· v2
dr_libs dr_wav.h version 0.14.4 and earlier (fixed in commit 8a7258c) contain a heap buffer overflow vulnerability in the drwav__read_smpl_to_metadata_obj() function of dr_wav.h that allows memory corruption via crafted...Show more
dr_libs dr_wav.h version 0.14.4 and earlier (fixed in commit 8a7258c) contain a heap buffer overflow vulnerability in the drwav__read_smpl_to_metadata_obj() function of dr_wav.h that allows memory corruption via crafted WAV files. Attackers can exploit a mismatch between sampleLoopCount validation in pass 1 and unconditional processing in pass 2 to overflow heap allocations with 36 bytes of attacker-controlled data through any drwav_init_*_with_metadata() call on untrusted input.Show less
1Libbiosig Project
1Libbiosig
Jun 17, 2026
Mar 3, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Branch (db9a9a63). A specially crafted Intan CLP file can lead to arbitrary code e...Show more
A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Branch (db9a9a63). A specially crafted Intan CLP file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.Show less
1Libbiosig Project
1Libbiosig
Jun 17, 2026
Mar 3, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
A heap-based buffer overflow vulnerability exists in the Nicolet WFT parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Branch (db9a9a63). A specially crafted .wft file can lead to arbitrary code exec...Show more
A heap-based buffer overflow vulnerability exists in the Nicolet WFT parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Branch (db9a9a63). A specially crafted .wft file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.Show less
1Xlnt Community
1Xlnt
Jun 17, 2026
Mar 3, 2026
1.9 LOW· v4
7.8 HIGH· v3
1.7 LOW· v2
A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::binary_writer::append of the file source/detail/binary.hpp of the component Compound Document Parser. This manipul...Show more
A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::binary_writer::append of the file source/detail/binary.hpp of the component Compound Document Parser. This manipulation causes heap-based buffer overflow. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. Patch name: 147. It is suggested to install a patch to address this issue.Show less