CWE-122— 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().— MITRE CWE catalog
3,207 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-122page 44 of 65
- CVE-2026-25794HIGHCVSS 8.2EG 8.22026-02-24
ImageMagick is free and open-source software used for editing and manipulating digital images. `WriteUHDRImage` in `coders/uhdr.c` uses `int` arithmetic to compute the pixel buffer size. Prior to version 7.1.2-15, when image dimensions are…
- CVE-2026-25897CRITICALCVSS 9.8EG 9.82026-02-24
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, an Integer Overflow vulnerability exists in the sun decoder. On 32-bit systems/builds, a carefully cra…
- CVE-2026-2597HIGHCVSS 7.5EG 7.52026-02-27
Crypt::SysRandom::XS versions before 0.010 for Perl is vulnerable to a heap buffer overflow in the XS function random_bytes(). The function does not validate that the length parameter is non-negative. If a negative value (e.g. -1) is supp…
- CVE-2026-26011CRITICALCVSS 9.8EG 9.82026-02-12
navigation2 is a ROS 2 Navigation Framework and System. In 1.3.11 and earlier, a critical heap out-of-bounds write vulnerability exists in Nav2 AMCL's particle filter clustering logic. By publishing a single crafted geometry_msgs/PoseWithC…
- CVE-2026-26073MEDIUMCVSS 5.9EG 5.92026-03-26
EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race leading to possible `std::queue`/`std::deque` corruption. The trigger is powermeter public key update and EV session/error events (while OCPP not starte…
- CVE-2026-26108HIGHCVSS 7.8EG 7.82026-03-10
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
- CVE-2026-26111HIGHCVSS 8.0EG 8.82026-03-10
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
- CVE-2026-26156HIGHCVSS 7.8EG 7.82026-04-14
Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally.
- CVE-2026-26176HIGHCVSS 7.8EG 7.82026-04-14
Heap-based buffer overflow in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to elevate privileges locally.
- CVE-2026-26180HIGHCVSS 7.8EG 7.82026-04-14
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-26200HIGHCVSS 7.8EG 7.82026-02-19
HDF5 is software for managing data. Prior to version 1.14.4-2, an attacker who can control an `h5` file parsed by HDF5 can trigger a write-based heap buffer overflow condition. This can lead to a denial-of-service condition, and potentiall…
- CVE-2026-26284CRITICALCVSS 9.1EG 9.12026-02-24
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, ImageMagick lacks proper boundary checking when processing Huffman-coded data from PCD (Photo CD) file…
- CVE-2026-2646HIGHCVSS 8.1EG 8.12026-03-19
A heap-buffer-overflow vulnerability exists in wolfSSL's wolfSSL_d2i_SSL_SESSION() function. When deserializing session data with SESSION_CERTS enabled, certificate and session id lengths are read from an untrusted input without bounds val…
- CVE-2026-2648HIGHCVSS 8.8EG 8.82026-02-18
Heap buffer overflow in PDFium in Google Chrome prior to 145.0.7632.109 allowed a remote attacker to perform an out of bounds memory write via a crafted PDF file. (Chromium security severity: High)
- CVE-2026-2650HIGHCVSS 8.8EG 8.82026-02-18
Heap buffer overflow in Media in Google Chrome prior to 145.0.7632.109 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
- CVE-2026-2653HIGHCVSS 7.8EG 7.82026-02-18
A security flaw has been discovered in admesh up to 0.98.5. This issue affects the function stl_check_normal_vector of the file src/normals.c. Performing a manipulation results in heap-based buffer overflow. The attack must be initiated fr…
- CVE-2026-2661HIGHCVSS 7.8EG 7.82026-02-18
A security flaw has been discovered in Squirrel up to 3.2. This affects the function SQObjectPtr::operator in the library squirrel/sqobject.h. The manipulation results in heap-based buffer overflow. The attack needs to be approached locall…
- CVE-2026-26967MEDIUMCVSS 5.3EG 5.32026-02-20
PJSIP is a free and open source multimedia communication library written in C. In versions 2.16 and below, there is a critical Heap-based Buffer Overflow vulnerability in PJSIP's H.264 unpacketizer. The bug occurs when processing malformed…
- CVE-2026-27168CRITICALCVSS 9.8EG 9.82026-02-21
SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. All versions are vulnerable to Heap-based Buffer Overflow through the XWD parser's use of the bytes_per_line value. The …
- CVE-2026-27238HIGHCVSS 7.8EG 7.82026-04-14
InDesign Desktop versions 20.5.2, 21.2 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 intera…
- CVE-2026-27271HIGHCVSS 7.8EG 7.82026-03-10
Illustrator versions 29.8.4, 30.1 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…
- CVE-2026-27285MEDIUMCVSS 5.5EG 5.52026-04-14
InDesign Desktop versions 20.5.2, 21.2 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application or disrup…
- CVE-2026-27286MEDIUMCVSS 5.5EG 5.52026-04-14
InDesign Desktop versions 20.5.2, 21.2 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in mem…
- CVE-2026-27293HIGHCVSS 7.8EG 7.82026-04-14
Adobe Framemaker versions 2022.8 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 …
- CVE-2026-27301MEDIUMCVSS 5.5EG 5.52026-04-14
Adobe Framemaker versions 2022.8 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in memory. E…
- CVE-2026-27310HIGHCVSS 7.8EG 7.82026-04-14
Bridge versions 16.0.2, 15.1.4 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…
- CVE-2026-27311HIGHCVSS 7.8EG 7.82026-04-14
Bridge versions 16.0.2, 15.1.4 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…
- CVE-2026-27312HIGHCVSS 7.8EG 7.82026-04-14
Bridge versions 16.0.2, 15.1.4 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…
- CVE-2026-27313HIGHCVSS 7.8EG 7.82026-04-14
Bridge versions 16.0.2, 15.1.4 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…
- CVE-2026-27654HIGHCVSS 8.2EG 8.22026-03-24
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_dav_module module that might allow an attacker to trigger a buffer overflow to the NGINX worker process; this vulnerability may result in termination of the NGINX worker…
- CVE-2026-27799MEDIUMCVSS 4.4EG 4.42026-02-26
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability exists in the DJVU image format handler. The vulnerability occur…
- CVE-2026-27940HIGHCVSS 7.8EG 7.82026-03-12
llama.cpp is an inference of several LLM models in C/C++. Prior to b8146, the gguf_init_from_file_impl() in gguf.cpp is vulnerable to an Integer overflow, leading to an undersized heap allocation. Using the subsequent fread() writes 528+ b…
- CVE-2026-28418MEDIUMCVSS 5.5EG 5.52026-02-27
Vim is an open source, command line text editor. Prior to version 9.2.0074, a heap-based buffer overflow out-of-bounds read exists in Vim's Emacs-style tags file parsing logic. When processing a malformed tags file, Vim can be tricked into…
- CVE-2026-28420MEDIUMCVSS 4.4EG 4.42026-02-27
Vim is an open source, command line text editor. Prior to version 9.2.0076, a heap-based buffer overflow WRITE and an out-of-bounds READ exist in Vim's terminal emulator when processing maximum combining characters from Unicode supplementa…
- CVE-2026-28421HIGHCVSS 7.8EG 7.82026-02-27
Vim is an open source, command line text editor. Versions prior to 9.2.0077 have a heap-buffer-overflow and a segmentation fault (SEGV) exist in Vim's swap file recovery logic. Both are caused by unvalidated fields read from crafted pointe…
- CVE-2026-28519HIGHCVSS 8.8EG 8.82026-03-16
arduino-TuyaOpen before version 1.2.1 contains a heap-based buffer overflow vulnerability in the DnsServer component. An attacker on the same local area network who controls the LAN DNS server can send malicious DNS responses to overflow t…
- CVE-2026-28546MEDIUMCVSS 5.5EG 5.92026-03-05
Buffer overflow vulnerability in the scanning module. Impact: Successful exploitation of this vulnerability may affect availability.
- CVE-2026-28618HIGHCVSS 8.8EG 8.82026-09-08
In dec_frm_prepare of oapv.c, there is a possible OOB write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.
- CVE-2026-28662HIGHCVSS 8.0EG 8.02026-09-08
In p2p_process_prov_disc_bootstrap_req of p2p_pd.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User in…
- CVE-2026-28686MEDIUMCVSS 6.8EG 6.82026-03-10
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 alloc…
- CVE-2026-28780CRITICALCVSS 9.8EG 9.82026-05-05
Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server. If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to mod_proxy_ajp and cause it to write 4 attacker co…
- CVE-2026-28842HIGHCVSS 7.5EG 7.52026-03-25
The issue was addressed with improved bounds checks. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.
- CVE-2026-29004HIGHCVSS 8.1EG 8.12026-05-04
BusyBox before commit 42202bf contains a heap buffer overflow vulnerability in the DHCPv6 client (udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c that allows network-adjacent attackers to trigger memory corruption by sen…
- CVE-2026-29022HIGHCVSS 7.8EG 7.82026-03-03
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. Attacker…
- CVE-2026-29043MEDIUMCVSS 5.5EG 5.52026-04-10
HDF5 is software for managing data. In 1.14.1-2 and earlier, an attacker who can control an h5 file parsed by HDF5 can trigger a write-based heap buffer overflow condition in the H5T__ref_mem_setnull method. This can lead to a denial-of-se…
- CVE-2026-2913HIGHCVSS 7.0EG 7.02026-02-22
A vulnerability was determined in libvips up to 8.19.0. The affected element is the function vips_source_read_to_memory of the file libvips/iofuncs/source.c. This manipulation causes heap-based buffer overflow. It is possible to launch the…
- CVE-2026-2920HIGHCVSS 7.8EG 7.82026-03-16
GStreamer ASF Demuxer Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to…
- CVE-2026-30040MEDIUMCVSS 6.5EG 6.52026-06-26
A heap overflow in the FSViewer.exe process of FastStone Image Viewer v8.3 allows attackers to cause a execute arbitrary code in the context of the current process via supplying a crafted JPEG 2000 (JP2) file.
- CVE-2026-3082HIGHCVSS 7.8EG 7.82026-03-16
GStreamer JPEG Parser Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to…
- CVE-2026-3085HIGHCVSS 8.8EG 8.82026-03-16
GStreamer rtpqdm2depay Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required t…
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