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 41 of 65
- CVE-2026-15422CRITICALCVSS 9.1EG 9.12026-07-16
The illumos SCTP inbound path performs association lookup for INIT ACK chunks without adequately validating the address parameters carried in the chunk. Since this lookup runs during packet classification (i.e. before SCTP integrity checks…
- CVE-2026-15449MEDIUMCVSS 5.8EG 5.82026-07-16
A time-of-check to time-of-use (TOCTOU) flaw in the illumos data-link pseudo-driver (dld) affects handling of the DLDIOC_GETMACPROP and DLDIOC_SETMACPROP ioctls on /dev/dld. drv_ioc_prop_common() in usr/src/uts/common/io/dld/dld_drv.c copi…
- CVE-2026-15506HIGHCVSS 7.8EG 7.82026-07-12
A security vulnerability has been detected in SecureAge CatchPulse up to 10.9.3. The affected element is an unknown function in the library saappctl.sys of the component Driver. Such manipulation leads to heap-based buffer overflow. An att…
- CVE-2026-15520MEDIUMCVSS 5.3EG 5.32026-07-13
A vulnerability was determined in GNU LibreDWG 0.13.4-154-g0b573035. This impacts the function decompress_R2004_section of the file src/decode.c of the component R2004 Section Decompression. Executing a manipulation can lead to heap-based …
- CVE-2026-15767HIGHCVSS 8.8EG 8.82026-07-14
Heap buffer overflow in libyuv in Google Chrome on Windows prior to 150.0.7871.125 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted video file. (Chromium security severity: High)
- CVE-2026-16118HIGHCVSS 7.1EG 7.12026-07-17
A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data lo…
- CVE-2026-16463HIGHCVSS 7.8EG 7.82026-07-29
A maliciously crafted DXF file, when parsed through Autodesk AutoCAD, can force a Heap-Based Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, read sensitive data, or execute arbitrary code in the …
- CVE-2026-1652MEDIUMCVSS 6.1EG 6.12026-03-11
A potential buffer overflow vulnerability was reported in the Lenovo Virtual Bus driver used in Smart Connect that could allow a local authenticated user to corrupt memory and cause a Windows blue screen error.
- CVE-2026-16928HIGHCVSS 7.5EG 7.52026-08-20
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to a heap-based buffer overflow.
- CVE-2026-17680CRITICALCVSS 9.6EG 9.62026-07-30
Heap buffer overflow in Color in Google Chrome on ChromeOS prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severi…
- CVE-2026-17758CRITICALCVSS 9.6EG 9.62026-07-30
Heap buffer overflow in Dawn in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
- CVE-2026-17935HIGHCVSS 8.8EG 8.82026-07-30
Heap buffer overflow in Codecs in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Low)
- CVE-2026-17951HIGHCVSS 8.8EG 8.82026-07-30
Heap buffer overflow in WebRTC in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: Low)
- CVE-2026-18102MEDIUMCVSS 4.3EG 4.32026-08-19
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to overwrite adjacent memory due to an integer underflow during bounds checking.
- CVE-2026-18271MEDIUMCVSS 6.8EG 6.82026-08-20
Kenwood DNR1007XR vCardParser Heap-based Buffer Overflow Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Kenwood DNR1007XR devices. Authentication …
- CVE-2026-18281HIGHCVSS 8.0EG 8.02026-08-20
Sony XAV-9500ES l2_reassemble_sdu Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-9500ES devices. An attac…
- CVE-2026-18282HIGHCVSS 8.0EG 8.02026-08-20
Sony XAV-9500ES AVRCP_Br_Response_Parser Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-9500ES devices. A…
- CVE-2026-18296HIGHCVSS 7.8EG 7.82026-08-20
GStreamer MRF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit…
- CVE-2026-18298HIGHCVSS 7.8EG 7.82026-08-20
GStreamer PNG File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit…
- CVE-2026-18302HIGHCVSS 7.8EG 7.82026-08-20
GIMP TIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vuln…
- CVE-2026-18307HIGHCVSS 7.8EG 7.82026-08-20
GIMP TIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vuln…
- CVE-2026-18341HIGHCVSS 8.8EG 8.82026-09-04
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to corrupt memory due to an integer underflow.
- CVE-2026-18368MEDIUMCVSS 6.0EG 6.02026-08-13
In Teltonika Networks RUTOS devices, a vulnerability exists in modbusgwd due to improper handling of Modbus TCP request data. A remote, unauthenticated attacker with access to the affected service could trigger a heap-based buffer overf…
- CVE-2026-18370MEDIUMCVSS 4.8EG 4.82026-08-10
entr is vulnerable to Heap-based buffer overflow in run_utility() function. The function allocates a fixed-size heap buffer using malloc(ARG_MAX) and copies command-line arguments into it. It advances the destination pointer based on the r…
- CVE-2026-18495MEDIUMCVSS 6.1EG 6.12026-09-11
A flaw was found in libtiff. A heap-buffer overflow vulnerability exists in the `tiff2pdf` utility due to an integer truncation error when processing crafted BigTIFF files. An attacker can provide a specially crafted BigTIFF file, causing …
- CVE-2026-18497HIGHCVSS 7.1EG 7.12026-08-07
A heap-buffer-overflow vulnerability exists in the nothings stb TrueType library, up to version 1.26, that is used for parsing TrueType font files. The vulnerability exists in the stbtt__GetGlyphShapeTT() function within the nothings stb_t…
- CVE-2026-18585MEDIUMCVSS 4.3EG 4.32026-08-03
A vulnerability was detected in GL.iNet MT3000, MT6000, BE9300, BE3600, MT3600BE, E5800, BE6500, MT5000, X3000, XE3000 and MT2500 up to 20260707. The affected element is the function nas-web.get_file_list of the component APPS-NAS Module. …
- CVE-2026-1861HIGHCVSS 8.8EG 8.82026-02-03
Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-18784MEDIUMCVSS 5.3EG 5.32026-08-04
A vulnerability was found in o6 open62541 up to 1.5.5. This issue affects the function UA_Client_readNodeClassAttribute of the file src/client/ua_client_highlevel.c. Performing a manipulation results in heap-based buffer overflow. Attackin…
- CVE-2026-18938MEDIUMCVSS 6.2EG 6.22026-08-07
A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalcul…
- CVE-2026-19004HIGHCVSS 8.1EG 8.12026-08-12
An application using the MongoDB BI Connector ODBC Driver may experience a memory-safety issue when processing output parameters from a stored procedure. Triggering this issue requires connecting to an untrusted or impersonated database se…
- CVE-2026-19138HIGHCVSS 8.3EG 8.32026-08-06
Heap buffer overflow in CrashReporting in Google Chrome prior to 151.0.7922.109 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity…
- CVE-2026-19156HIGHCVSS 7.5EG 7.52026-08-06
Heap buffer overflow in Base in Google Chrome prior to 151.0.7922.109 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security sever…
- CVE-2026-19206MEDIUMCVSS 5.3EG 5.32026-08-07
A security flaw has been discovered in MZ Automation libiec61850 up to 1.6.1. This affects the function SVReceiver_stopThreadless of the file src/sampled_values/sv_subscriber.c of the component ASDU Element Handler. Performing a manipulati…
- CVE-2026-19259MEDIUMCVSS 5.3EG 5.32026-08-08
A vulnerability has been found in MZ Automation libiec61850 up to 1.6.1. The affected element is the function MmsMapping_varAccessSpecToObjectReference of the file src/iec61850/common/iec61850_common.c of the component MMS Protocol Workflo…
- CVE-2026-19313CRITICALCVSS 9.3EG 9.32026-08-27
An heap overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.
- CVE-2026-19385HIGHCVSS 8.8EG 8.82026-08-13
Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execute arbitrary code as the operating system user running pg_dump, via a crafted transform list. Versions before PostgreSQL 18.6, 17…
- CVE-2026-19499HIGHCVSS 7.7EG 7.72026-09-14
Calling strfmon and strfmon_l in the GNU C Library version 2.38 to 2.44 can write past the end of the caller-supplied output buffer when a conversion uses right-justified width padding. Exploitation requires an application code path that …
- CVE-2026-19694MEDIUMCVSS 5.5EG 5.52026-08-13
TTX Logger file parser crash in 4.6.0 to 4.6.7 allows denial of service
- CVE-2026-19781HIGHCVSS 7.8EG 7.82026-09-15
Ashlar-Vellum Cobalt VS File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction i…
- CVE-2026-19874CRITICALCVSS 9.1EG 9.12026-08-24
A heap-based buffer overflow vulnerability exists in Konami's Metal Gear Online 3, originating from improper validation of lobby data fields related to kicked players. The affected function processes a list of kicked player identifiers usi…
- CVE-2026-19967MEDIUMCVSS 6.3EG 6.32026-08-17
A security flaw has been discovered in Open Asset Import Library Assimp 17c12da. Impacted is the function Assimp::Compression::decompressBlock of the file code/Common/Compression.cpp of the component File Parser. Performing a manipulation …
- CVE-2026-19968MEDIUMCVSS 4.3EG 4.32026-08-17
A weakness has been identified in Open Asset Import Library Assimp 17c12da. The affected element is the function Assimp::MDLImporter::ReadFaces_3DGS_MDL7 in the library code/AssetLib/LWO/LWOLoader.h of the component 3DGS MDL7 Model Parser.…
- CVE-2026-19970MEDIUMCVSS 6.3EG 6.32026-08-17
A vulnerability was detected in Open Asset Import Library Assimp 17c12da. This affects the function Assimp::MDLImporter::AddBonesToNodeGraph_3DGS_MDL7 of the file code/AssetLib/MDL/MDLLoader.cpp of the component Node Parser. The manipulati…
- CVE-2026-2005HIGHCVSS 8.8EG 8.82026-02-12
Heap buffer overflow in PostgreSQL pgcrypto allows a ciphertext provider to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.
- CVE-2026-20053MEDIUMCVSS 5.8EG 5.82026-03-04
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…
- CVE-2026-2007HIGHCVSS 8.2EG 8.22026-02-12
Heap buffer overflow in PostgreSQL pg_trgm allows a database user to achieve unknown impacts via a crafted input string. The attacker has limited control over the byte patterns to be written, but we have not ruled out the viability of att…
- CVE-2026-20185HIGHCVSS 7.7EG 7.72026-05-06
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco 350 Series Managed Switches (SG350) and Cisco 350X Series Stackable Managed Switches (SG350X) firmware could allow an authenticated, remote attac…
- CVE-2026-20408HIGHCVSS 8.8EG 8.82026-02-02
In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploi…
- CVE-2026-20452HIGHCVSS 8.0EG 8.02026-06-01
In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with User execution privileges needed. User interaction is not needed for exploitation. Pa…
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