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
3,270 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-122page 24 of 66
- 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-2026-42945HIGHCVSS 8.1EG 8.12026-05-13
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expr…
- 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-2025-21376HIGHCVSS 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…
- CVE-2023-33133HIGHCVSS 7.8EG 8.12023-06-14
Microsoft Excel Remote Code Execution Vulnerability
- CVE-2016-9586HIGHCVSS 5.9EG 8.12018-04-23
curl before version 7.52.0 is vulnerable to a buffer overflow when doing a large floating point output in libcurl's implementation of the printf() functions. If there are any application that accepts a format string from the outside withou…
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