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
2,574 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-122page 45 of 52
- CVE-2026-3463LOWCVSS 7.8EG 3.32026-03-03
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-b…
- CVE-2026-34630HIGHCVSS 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-2026-34642HIGHCVSS 7.8EG 7.82026-05-12
After Effects versions 26.0, 25.6.4 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 interacti…
- CVE-2026-34687HIGHCVSS 7.8EG 7.82026-05-12
Illustrator versions 29.8.6, 30.3 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-2026-34698HIGHCVSS 7.8EG 7.82026-06-09
InDesign Desktop versions 21.3, 20.5.3 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-2026-34699HIGHCVSS 7.8EG 7.82026-06-09
InDesign Desktop versions 21.3, 20.5.3 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-2026-34701HIGHCVSS 7.8EG 7.82026-06-09
InDesign Desktop versions 21.3, 20.5.3 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-2026-34707HIGHCVSS 7.8EG 7.82026-06-09
InCopy versions 21.3, 20.5.3 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 t…
- CVE-2026-34743MEDIUMCVSS 5.3EG 5.32026-04-02
XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where …
- CVE-2026-34865CRITICALCVSS 9.1EG 9.12026-04-13
Out-of-bounds write vulnerability in the WEB module.Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.
- CVE-2026-34979MEDIUMCVSS 5.3EG 5.32026-04-03
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, there is a heap-based buffer overflow in the CUPS scheduler when building filter option strings from job att…
- CVE-2026-35199MEDIUMCVSS 6.1EG 6.12026-04-06
SymCrypt is the core cryptographic function library currently used by Windows. From 103.5.0 to before 103.11.0, The SymCryptXmssSign function passes a 64-bit leaf count value to a helper function that accepts a 32-bit parameter. For XMSS^M…
- CVE-2026-35420HIGHCVSS 7.8EG 7.82026-05-12
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-35421HIGHCVSS 7.8EG 7.82026-05-12
Heap-based buffer overflow in Windows GDI allows an unauthorized attacker to execute code locally.
- CVE-2026-3544HIGHCVSS 8.8EG 8.82026-03-04
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)
- CVE-2026-3548CRITICALCVSS 9.8EG 9.82026-03-19
Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for suffici…
- CVE-2026-3549CRITICALCVSS 9.8EG 9.82026-03-19
Heap Overflow in TLS 1.3 ECH parsing. An integer underflow existed in ECH extension parsing logic when calculating a buffer length, which resulted in writing beyond the bounds of an allocated buffer. Note that in wolfSSL, ECH is off by def…
- CVE-2026-35512HIGHCVSS 8.8EG 8.82026-04-17
xrdp is an open source RDP server. Versions through 0.10.5 have a heap-based buffer overflow in the EGFX (graphics dynamic virtual channel) implementation due to insufficient validation of client-controlled size parameters, allowing an out…
- CVE-2026-35547CRITICALCVSS 8.1EG 9.12026-04-30
When processing the header of an incoming message, libnv failed to properly validate the message size. The lack of validation allows a malicious program to write outside the bounds of a heap allocation. This can trigger a crash or system…
- CVE-2026-3555HIGHCVSS 8.0EG 8.02026-03-16
Philips Hue Bridge Zigbee Stack Custom Command Handler Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue …
- CVE-2026-3556HIGHCVSS 8.8EG 8.82026-03-16
Philips Hue Bridge HomeKit Pair-Setup Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Authentic…
- CVE-2026-3557HIGHCVSS 8.0EG 8.02026-03-16
Philips Hue Bridge hap_pair_verify_handler Sub-TLV Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips …
- CVE-2026-35590MEDIUMCVSS 6.8EG 6.82026-07-20
libvips is a fast image processing library with low memory needs. The EXIF decoder within libvips versions before and including 8.18.1 was not verifying the range of EXIF tag groups before passing data to libexif, leading to a possible nul…
- CVE-2026-35591HIGHCVSS 7.0EG 7.02026-07-20
libvips is a fast image processing library with low memory needs. The `tiffload` operation in libvips versions before and including 8.18.1 could incorrectly determine the number of channels in a JPEG or JPEG2000-encoded tile within a TIFF …
- CVE-2026-3560HIGHCVSS 8.8EG 8.82026-03-16
Philips Hue Bridge HomeKit hk_hap_pair_storage_put Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Brid…
- CVE-2026-3561HIGHCVSS 8.0EG 8.02026-03-16
Philips Hue Bridge hk_hap characteristics Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Altho…
- CVE-2026-3713MEDIUMCVSS 5.3EG 5.32026-03-08
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-ba…
- CVE-2026-38427HIGHCVSS 7.3EG 7.32026-05-27
An issue in fetch_jpg() in xdrv_10_scripter.ino in Tasmota through 15.3.0.3 allows a remote attacker to cause heap buffer overflow. The Content-Length from a JPEG stream is stored in a uint16_t variable; values above 65535 wrap around, cau…
- CVE-2026-3845HIGHCVSS 8.8EG 8.82026-03-10
Heap buffer overflow in the Audio/Video: Playback component in Firefox for Android. This vulnerability was fixed in Firefox 148.0.2.
- CVE-2026-38754HIGHCVSS 7.5EG 7.52026-07-15
A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.
- CVE-2026-38755HIGHCVSS 7.5EG 7.52026-07-15
A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.
- CVE-2026-39103MEDIUMCVSS 5.5EG 5.52026-05-05
Buffer Overflow vulnerability in GPAC before commit v391dc7f4d234988ea0bc3cc294eb725eddf8f702 allows an attacker to cause a denial of service via the src/scenegraph/svg_attributes.c, svg_parse_strings(), gf_svg_parse_attribute()
- CVE-2026-3913HIGHCVSS 8.8EG 8.82026-03-11
Heap buffer overflow in WebML in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)
- CVE-2026-3915HIGHCVSS 8.8EG 8.82026-03-11
Heap buffer overflow in WebML in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-3931HIGHCVSS 8.8EG 8.82026-03-11
Heap buffer overflow in Skia in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: Medium)
- CVE-2026-3994MEDIUMCVSS 5.3EG 5.32026-03-12
A vulnerability was detected in rui314 mold up to 2.40.4. This issue affects the function mold::ObjectFilemold::X86_64::initialize_sections of the file src/input-files.cc of the component Object File Handler. Performing a manipulation resu…
- CVE-2026-40033HIGHCVSS 8.8EG 8.82026-05-26
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdi_CacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16_M…
- CVE-2026-40106HIGHCVSS 7.8EG 7.82026-07-16
Wazuh is a free and open source platform used for threat prevention, detection, and response. Versions 4.6.0 and above prior to 4.14.5 contain a heap-based buffer overflow vulnerability in the syscheck component of the Wazuh agent for Wind…
- CVE-2026-40169MEDIUMCVSS 6.2EG 6.22026-04-13
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, a crafted image could result in an out of bounds heap write when writing a yaml or json output, resulting in a crash…
- CVE-2026-40183MEDIUMCVSS 5.5EG 5.52026-04-13
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats. …
- CVE-2026-40310MEDIUMCVSS 5.5EG 5.52026-04-13
ImageMagick is free and open-source software used for editing and manipulating digital images. Versions below both 7.1.2-19 and 6.9.13-44, contain a heap out-of-bounds write in the JP2 encoder with when a user specifies an invalid sampling…
- CVE-2026-40362HIGHCVSS 7.8EG 7.82026-05-12
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
- CVE-2026-40363HIGHCVSS 8.4EG 8.42026-05-12
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
- CVE-2026-40364HIGHCVSS 8.4EG 8.42026-05-12
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
- CVE-2026-40377HIGHCVSS 7.8EG 7.82026-05-12
Heap-based buffer overflow in Windows Cryptographic Services allows an authorized attacker to elevate privileges locally.
- CVE-2026-40380MEDIUMCVSS 6.2EG 6.22026-05-12
Heap-based buffer overflow in Volume Manager Extension Driver allows an authorized attacker to execute code with a physical attack.
- CVE-2026-40398HIGHCVSS 7.8EG 7.82026-05-12
Heap-based buffer overflow in Windows Remote Desktop allows an authorized attacker to elevate privileges locally.
- CVE-2026-40403HIGHCVSS 8.8EG 8.82026-05-12
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to execute code locally.
- CVE-2026-40404HIGHCVSS 7.8EG 7.82026-06-09
Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability
- CVE-2026-40407HIGHCVSS 7.8EG 7.82026-05-12
Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
Map vulnerabilities like CWE-122 to your infrastructure
EchelonGraph correlates every CVE — across CWE-122 and 150+ other weakness categories — against the assets you actually run. See blast radius, fix versions, and remediation steps in one graph.
Start Free Scan →