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
3,727 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-122page 1 of 75
- CVE-2026-94127CRITICALCVSS 9.8EG 9.8⚠ KEV2026-09-22
When a BIG-IP APM access policy and an OAuth profile are configured on a virtual server, specific malicious traffic can lead to remote code execution (RCE). This vulnerability is only present when BIG-IP APM is configured as an OAuth Autho…
- CVE-2025-25249CRITICALCVSS 9.8EG 9.8⚠ KEV2026-01-13
A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiSwitchManager 7.2.0 through 7.2.6, …
- CVE-2024-38812CRITICALCVSS 9.8EG 9.8⚠ KEV2024-09-17
The vCenter Server contains a heap-overflow vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger this vulnerability by sending a specially crafted network packet …
- CVE-2024-37079CRITICALCVSS 9.8EG 9.8⚠ KEV2024-06-18
vCenter Server contains a heap-overflow vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger this vulnerability by sending a specially crafted network packet potent…
- CVE-2023-27997CRITICALCVSS 9.8EG 9.8⚠ KEV2023-06-13
A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version …
- CVE-2019-3568CRITICALCVSS 9.8EG 9.8⚠ KEV2019-05-14
A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via specially crafted series of RTCP packets sent to a target phone number. The issue affects WhatsApp for Android prior to v2.19.134, WhatsApp Business f…
- CVE-2015-3113CRITICALCVSS 9.8EG 9.8⚠ KEV2015-06-23
Heap-based buffer overflow in Adobe Flash Player before 13.0.0.296 and 14.x through 18.x before 18.0.0.194 on Windows and OS X and before 11.2.202.468 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as e…
- CVE-2020-16010CRITICALCVSS 9.6EG 9.6⚠ KEV2020-11-03
Heap buffer overflow in UI in Google Chrome on Android prior to 86.0.4240.185 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
- CVE-2021-21017CRITICALCVSS 8.8EG 9.0⚠ KEV2021-02-11
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. An unauthenticated attacker could leverage this vul…
- CVE-2009-3459CRITICALCVSS 8.8EG 9.0⚠ KEV2009-10-13
Heap-based buffer overflow in Adobe Reader and Acrobat 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2 allows remote attackers to execute arbitrary code via a crafted PDF file that triggers memory corruption, as exploited in the wil…
- CVE-2026-85880CRITICALCVSS 7.8EG 9.0⚠ KEV2026-09-08
Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.
- CVE-2026-53362CRITICALCVSS 7.8EG 9.0⚠ KEV2026-07-04
In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path In __ip6_append_data(), when the paged-allocation branch is taken (MSG_MORE / NETIF_F_SG / large fraglen), allocle…
- CVE-2025-24993CRITICALCVSS 7.8EG 9.0⚠ KEV2025-03-11
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
- CVE-2025-24985CRITICALCVSS 7.8EG 9.0⚠ KEV2025-03-11
Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
- CVE-2025-21418CRITICALCVSS 7.8EG 9.0⚠ KEV2025-02-11
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
- CVE-2025-21333CRITICALCVSS 7.8EG 9.0⚠ KEV2025-01-14
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
- CVE-2024-49138CRITICALCVSS 7.8EG 9.0⚠ KEV2024-12-12
Windows Common Log File System Driver Elevation of Privilege Vulnerability
- CVE-2024-30051CRITICALCVSS 7.8EG 9.0⚠ KEV2024-05-14
Windows DWM Core Library Elevation of Privilege Vulnerability
- CVE-2023-36036CRITICALCVSS 7.8EG 9.0⚠ KEV2023-11-14
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
- CVE-2023-4911CRITICALCVSS 7.8EG 9.0⚠ KEV2023-10-03
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables …
- CVE-2023-28252CRITICALCVSS 7.8EG 9.0⚠ KEV2023-04-11
Windows Common Log File System Driver Elevation of Privilege Vulnerability
- CVE-2023-23376CRITICALCVSS 7.8EG 9.0⚠ KEV2023-02-14
Windows Common Log File System Driver Elevation of Privilege Vulnerability
- CVE-2026-110958CRITICALCVSS 10.0EG 10.02026-10-15
A vulnerability was found in Wavlink WN530HG4B M30HG4B_V260724. The impacted element is an unknown function of the file api.cgi. The manipulation results in heap-based buffer overflow. It is possible to launch the attack remotely. The expl…
- CVE-2026-10747CRITICALCVSS 10.0EG 10.02026-09-18
IBM MQ Appliance could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow in protocol message processing before authentication.
- CVE-2026-46752CRITICALCVSS 10.0EG 10.02026-06-25
Redis Lua HEAP overflow in cjson library vulnerability in Apache Kvrocks. This issue affects Apache Kvrocks: from 2.0.4 through 2.15.0. Users are recommended to upgrade to version 2.16.0, which fixes the issue.
- CVE-2026-24822CRITICALCVSS 10.0EG 10.02026-01-27
Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in ttttupup wxhelper (src modules). This vulnerability is associated with program files mongoose.C. This issue affects wxhelper: through 3.9.10.19-v1.
- CVE-2025-23123CRITICALCVSS 10.0EG 10.02025-05-19
A malicious actor with access to the management network could execute a remote code execution (RCE) by exploiting a heap buffer overflow vulnerability in the UniFi Protect Cameras (Version 4.75.43 and earlier) firmware.
- CVE-2023-45318CRITICALCVSS 10.0EG 10.02024-02-20
A heap-based buffer overflow vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP git commit 80d4004. A specially crafted network packet can lead to arbitrary code execution. An attacker can send a malicious pac…
- CVE-2022-34819CRITICALCVSS 10.0EG 10.02022-07-12
A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions < V3.3.46), SIMATIC CP 1243-7 LTE US (All versions < V3.3.46), SIMATIC…
- CVE-2021-21940CRITICALCVSS 10.0EG 10.02021-10-12
A heap-based buffer overflow vulnerability exists in the pushMuxer processRtspInfo functionality of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted network packet can lead to a heap buffer overflow. An attacker can send a malicious pac…
- CVE-2021-34770CRITICALCVSS 10.0EG 10.02021-09-23
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to execute …
- CVE-2021-25387CRITICALCVSS 9.0EG 10.02021-06-11
An improper input validation vulnerability in sflacfd_get_frm() in libsflacextractor library prior to SMR MAY-2021 Release 1 allows attackers to execute arbitrary code on mediaextractor process.
- CVE-2026-10858CRITICALCVSS 9.9EG 9.92026-09-18
IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer underflow when processing multi-segment messages.
- CVE-2026-44050CRITICALCVSS 9.9EG 9.92026-05-21
A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code with escalated privileges or cause a denial of service.
- CVE-2026-32710CRITICALCVSS 9.9EG 9.92026-03-20
MariaDB server is a community developed fork of MySQL server. An authenticated user can crash MariaDB versions 11.4 before 11.4.10 and 11.8 before 11.8.6 via a bug in JSON_SCHEMA_VALID() function. Under certain conditions it might be possi…
- CVE-2016-9603CRITICALCVSS 5.5EG 9.92018-07-27
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A…
- CVE-2026-82120CRITICALCVSS 9.8EG 9.82026-10-27
Heap-based Buffer Overflow Vulnerability in HiRDB. This issue affects HiRDB Server Version 10: from 10-00 before 10-12-01; HiRDB Server Version 9: from 09-00 through 09-66-22; HiRDB Server with Additional Function Version 9: from 09-00 t…
- CVE-2026-76939CRITICALCVSS 9.8EG 9.82026-10-27
Heap-based Buffer Overflow Vulnerability in JP1/Automatic Job Management System 3. This issue affects JP1/Automatic Job Management System 3 - Manager: from 11-00 before 13-50-31; JP1/Automatic Job Management System 3 - Agent: from 11-00 b…
- CVE-2026-86574CRITICALCVSS 9.8EG 9.82026-10-27
Heap-based Buffer Overflow Vulnerability in JP1/Base. This issue affects JP1/Base: from 11-00 before 12-50-54.
- CVE-2026-78846CRITICALCVSS 9.8EG 9.82026-10-22
Multiple AiDot devices are vulnerable to a heap-based buffer overflow via SSDP location header parsing.
- CVE-2026-111183CRITICALCVSS 9.8EG 9.82026-10-21
GStreamer rtpL16depay 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-2026-112403CRITICALCVSS 9.8EG 9.82026-10-19
Pillow is a Python imaging library. Prior to 13.0.0, Pillow's JPEG decoder can write a full-width scanline into a buffer sized for a requested draft scale. ImagingJpegDecode does not verify libjpeg's actual output width and component count…
- CVE-2026-112398CRITICALCVSS 9.8EG 9.82026-10-19
Pillow is a Python imaging library. Prior to 13.0.0, Pillow's FlashPix JPEG-tile decoder can write decoded scanlines beyond the allocated tile buffer. FlashPix (FPX) JPEG decoding selects raw mode LA with two bytes per pixel, while an unre…
- CVE-2026-112393CRITICALCVSS 9.8EG 9.82026-10-19
Pillow is a Python imaging library. From 2.0.0 until 13.0.0, Pillow has a heap buffer overflow and stale-heap disclosure in _tiffWriteProc when saving compressed TIFF data through libtiff to a target without a usable fileno(), such as Byte…
- CVE-2026-102175CRITICALCVSS 9.8EG 9.82026-10-14
A Heap-based Buffer Overflow vulnerability in the sdxd service-deployment daemon of Juniper Networks Junos OS and Junos OS Evolved allows a remote unauthenticated attacker who can control or intercept the configured SDX/SRC server connecti…
- CVE-2026-101950CRITICALCVSS 9.8EG 9.82026-10-14
A Heap-based Buffer Overflow vulnerability in the SVR component of Juniper Networks Junos OS on SRX Series allows an unauthenticated network attacker to cause a denial of service and potentially compromise confidentiality and integrity via…
- CVE-2026-105016CRITICALCVSS 9.8EG 9.82026-10-13
Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
- CVE-2026-97815CRITICALCVSS 9.8EG 9.82026-10-13
Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.
- CVE-2026-97814CRITICALCVSS 9.8EG 9.82026-10-13
Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.
- CVE-2026-96113CRITICALCVSS 9.8EG 9.82026-10-13
Heap-based buffer overflow in DNS Server allows an unauthorized attacker to execute code over a network.
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