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
3,758 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-122page 28 of 76
- CVE-2026-42055HIGHCVSS 8.1EG 8.12026-06-17
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_proxy_v2_module and ngx_http_grpc_module modules. This vulnerability exists when the proxy_http_version to 2 or grpc_pass directives are used to proxy HTTP/2 traffic…
- CVE-2026-48131HIGHCVSS 8.1EG 8.12026-05-26
The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, resulting in denial of service (temporary…
- CVE-2026-9256HIGHCVSS 8.1EG 8.12026-05-22
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when a rewrite directive uses a regex pattern with distinct, overlapping Perl-Compatible Regular Expression (PCRE) captu…
- CVE-2026-45584HIGHCVSS 8.1EG 8.12026-05-20
Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.
- 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-2026-42512HIGHCVSS 8.1EG 8.12026-04-30
As dhclient is building an environment to pass to dhclient-script, it may need to resize the array of string pointers. The code which expands the array incorrectly calculates its new size when requesting memory, resulting in a heap buffer…
- CVE-2026-32623HIGHCVSS 8.1EG 8.12026-04-17
xrdp is an open source RDP server. Versions through 0.10.5 contain a heap-based buffer overflow vulnerability in the NeutrinoRDP module. When proxying RDP sessions from xrdp to another server, the module fails to properly validate the size…
- CVE-2026-22828HIGHCVSS 8.1EG 8.12026-04-14
A heap-based buffer overflow vulnerability in Fortinet FortiAnalyzer Cloud 7.6.2 through 7.6.4, FortiManager Cloud 7.6.2 through 7.6.4 may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically craft…
- 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-2026-31971HIGHCVSS 8.1EG 8.12026-03-18
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. When reading data encoded using the `BYTE_A…
- CVE-2026-31970HIGHCVSS 8.1EG 8.12026-03-18
HTSlib is a library for reading and writing bioinformatics file formats. GZI files are used to index block-compressed GZIP [BGZF] files. In the GZI loading function, `bgzf_index_load_hfile()`, it was possible to trigger an integer overflo…
- CVE-2026-31969HIGHCVSS 8.1EG 8.12026-03-18
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. When reading data encoded using the `BYTE_…
- CVE-2026-31968HIGHCVSS 8.1EG 8.12026-03-18
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. For the `VARINT` and `CONST` encodings, inc…
- CVE-2026-31963HIGHCVSS 8.1EG 8.12026-03-18
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. As one method of removing redundant data, CRAM uses reference-based compression so that instead …
- CVE-2026-20777HIGHCVSS 8.1EG 8.12026-03-03
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 …
- CVE-2026-23750HIGHCVSS 8.1EG 8.12026-02-26
Golioth Pouch version 0.1.0, prior to commit 1b2219a1, contains a heap-based buffer overflow in BLE GATT server certificate handling. server_cert_write() allocates a heap buffer of size CONFIG_POUCH_SERVER_CERT_MAX_LEN when receiving the f…
- CVE-2025-57709HIGHCVSS 8.1EG 8.12026-02-11
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in …
- CVE-2025-52870HIGHCVSS 8.1EG 8.12026-02-11
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in …
- CVE-2025-52869HIGHCVSS 8.1EG 8.12026-02-11
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in …
- CVE-2025-52868HIGHCVSS 8.1EG 8.12026-02-11
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in …
- CVE-2025-48724HIGHCVSS 8.1EG 8.12026-02-11
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in …
- CVE-2025-48723HIGHCVSS 8.1EG 8.12026-02-11
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in …
- CVE-2026-25646HIGHCVSS 8.1EG 8.12026-02-10
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API function.…
- CVE-2026-24852HIGHCVSS 8.1EG 8.12026-01-28
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, a heap buffer over-read when the strlen() function attempts to read a no…
- CVE-2025-11458HIGHCVSS 8.1EG 8.12025-11-06
Heap buffer overflow in Sync in Google Chrome prior to 141.0.7390.65 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: High)
- CVE-2025-3354HIGHCVSS 8.1EG 8.12025-08-06
IBM Tivoli Monitoring 6.3.0.7 through 6.3.0.7 Service Pack 20 is vulnerable to a heap-based buffer overflow, caused by improper bounds checking. A remote attacker could overflow a buffer and execute arbitrary code on the system or cause th…
- CVE-2025-3320HIGHCVSS 8.1EG 8.12025-08-06
IBM Tivoli Monitoring 6.3.0.7 through 6.3.0.7 Service Pack 20 is vulnerable to a heap-based buffer overflow, caused by improper bounds checking. A remote attacker could overflow a buffer and execute arbitrary code on the system or cause th…
- CVE-2025-30402HIGHCVSS 8.1EG 8.12025-07-11
A heap-buffer-overflow vulnerability in the loading of ExecuTorch methods can cause the runtime to crash and potentially result in code execution or other undesirable effects. This issue affects ExecuTorch prior to commit 93b1a0c15f7eda49b…
- CVE-2025-21376HIGHCVSS 8.1EG 8.12025-02-11
Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
- CVE-2024-43598HIGHCVSS 8.1EG 8.12024-11-12
LightGBM Remote Code Execution Vulnerability
- CVE-2024-38045HIGHCVSS 8.1EG 8.12024-09-10
Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2024-6873HIGHCVSS 8.1EG 8.12024-08-01
It is possible to crash or redirect the execution flow of the ClickHouse server process from an unauthenticated vector by sending a specially crafted request to the ClickHouse server native interface. This redirection is limited to what is…
- CVE-2023-49600HIGHCVSS 8.1EG 8.12024-05-28
An out-of-bounds write vulnerability exists in the PlyFile ply_cast_ascii functionality of libigl v2.5.0. A specially crafted .ply file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerabil…
- CVE-2024-30020HIGHCVSS 8.1EG 8.12024-05-14
Windows Cryptographic Services Remote Code Execution Vulnerability
- CVE-2023-5404HIGHCVSS 8.1EG 8.12024-04-17
Server receiving a malformed message can cause a pointer to be overwritten which can result in a remote code execution or failure. See Honeywell Security Notification for recommendations on upgrading and versioning.
- CVE-2023-5400HIGHCVSS 8.1EG 8.12024-04-17
Server receiving a malformed message based on a using the specified key values can cause a heap overflow vulnerability which could lead to an attacker performing remote code execution or causing a failure. See Honeywell Security Notifica…
- CVE-2024-25262HIGHCVSS 8.1EG 8.12024-02-29
texlive-bin commit c515e was discovered to contain heap buffer overflow via the function ttfLoadHDMX:ttfdump. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted TTF file.
- CVE-2023-48263HIGHCVSS 8.1EG 8.12024-01-10
The vulnerability allows an unauthenticated remote attacker to perform a Denial-of-Service (DoS) attack or, possibly, obtain Remote Code Execution (RCE) via a crafted network request.
- CVE-2022-43602HIGHCVSS 8.1EG 8.12022-12-22
Multiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially crafted ImageOutput Object can lead to a heap buffer overflow. An attacker can provide malicious…
- CVE-2022-43601HIGHCVSS 8.1EG 8.12022-12-22
Multiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially crafted ImageOutput Object can lead to a heap buffer overflow. An attacker can provide malicious…
- CVE-2022-43600HIGHCVSS 8.1EG 8.12022-12-22
Multiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially crafted ImageOutput Object can lead to a heap buffer overflow. An attacker can provide malicious…
- CVE-2022-43599HIGHCVSS 8.1EG 8.12022-12-22
Multiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially crafted ImageOutput Object can lead to a heap buffer overflow. An attacker can provide malicious…
- CVE-2022-43598HIGHCVSS 8.1EG 8.12022-12-22
Multiple memory corruption vulnerabilities exist in the IFFOutput alignment padding functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially crafted ImageOutput Object can lead to arbitrary code execution. An attacker can pro…
- CVE-2022-43597HIGHCVSS 8.1EG 8.12022-12-22
Multiple memory corruption vulnerabilities exist in the IFFOutput alignment padding functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially crafted ImageOutput Object can lead to arbitrary code execution. An attacker can pro…
- CVE-2021-21962HIGHCVSS 8.1EG 8.12022-02-04
A heap-based buffer overflow vulnerability exists in the OTA Update u-download functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A series of specially-crafted MQTT payloads can lead to remote code execution. An attacker must…
- CVE-2021-32959HIGHCVSS 8.1EG 8.12021-09-23
Heap-based buffer overflow in SuiteLink server while processing commands 0x05/0x06
- CVE-2020-25843HIGHCVSS 8.1EG 8.12020-12-31
NHIServiSignAdapter fails to verify the length of digital credential files’ path which leads to a heap overflow loophole. Remote attackers can use the leak to execute code without privilege.
- CVE-2018-11457HIGHCVSS 8.1EG 8.12018-12-12
A vulnerability has been identified in SINUMERIK 828D V4.7 (All versions < V4.7 SP6 HF1), SINUMERIK 840D sl V4.7 (All versions < V4.7 SP6 HF5), SINUMERIK 840D sl V4.8 (All versions < V4.8 SP3). The integrated web server on port 4842/tcp of…
- CVE-2016-1762HIGHCVSS 8.1EG 8.12016-03-24
The xmlNextChar function in libxml2 before 2.9.4 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted XML document.
- CVE-2025-10101HIGHCVSS 7.8EG 8.12025-12-01
Heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Mach-O file may allow Local Execution of Code or Denial-of-Service of the antivirus process. This issue affects Avast Antivirus, AVG Antivirus, Nort…
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