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 49 of 65
- 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-2026-47289HIGHCVSS 8.8EG 8.82026-06-09
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- CVE-2026-47291CRITICALCVSS 9.8EG 9.82026-06-09
Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.
- CVE-2026-47311CRITICALCVSS 9.8EG 9.82026-05-19
Heap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffers. This issue affects Escargot: 590345cc6258317c5da850d846ce6baaf2afc2d3.
- CVE-2026-47471HIGHCVSS 7.5EG 7.52026-07-14
NVIDIA TensorRT-LLM for any platform contains a vulnerability in tensor deserialization, where an attacker could cause a heap based buffer overflow. A successful exploit of this vulnerability might lead to information disclosure, data tamp…
- CVE-2026-47635HIGHCVSS 8.4EG 8.42026-06-09
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
- CVE-2026-47652HIGHCVSS 8.2EG 8.22026-06-09
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.
- CVE-2026-47747HIGHCVSS 7.8EG 7.82026-06-16
stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inference. In versions prior to master-584-0a7ae07, the pickle .ckpt parser in src/model.cpp contained a …
- CVE-2026-47749HIGHCVSS 7.8EG 7.82026-06-16
stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inference. Versions prior to master-584-0a7ae07 are vulnerable to heap buffer overflow in SHORT_BINUNICOD…
- CVE-2026-47952HIGHCVSS 7.8EG 7.82026-06-09
Acrobat Reader versions 24.001.30365, 26.001.21651 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…
- CVE-2026-47964HIGHCVSS 7.8EG 7.82026-06-16
DNG SDK versions 1.7.1 2536 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 th…
- CVE-2026-48065MEDIUMCVSS 6.7EG 6.72026-05-27
pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/conf.c allocates heap memory proportional to n_devices, a count derived from libxml2 XPath evaluation of the config file, without first …
- 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-2026-48135MEDIUMCVSS 5.3EG 5.32026-05-26
A Check Point HTTP-based service can incorrectly handle malformed HTTP requests. The issue is related to HTTP request parsing and validation.
- CVE-2026-48269HIGHCVSS 7.8EG 7.82026-07-14
Premiere Pro is 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 that a victim must open a mali…
- CVE-2026-48291HIGHCVSS 7.8EG 7.82026-06-09
Format Plugins versions 1.1.2 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-2026-48292HIGHCVSS 7.8EG 7.82026-06-09
Format Plugins versions 1.1.2 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-2026-48339HIGHCVSS 7.8EG 7.82026-07-14
Bridge is 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 that a victim must open a malicious …
- CVE-2026-48372HIGHCVSS 7.8EG 7.82026-07-28
Format Plugins is 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 that a victim must open a ma…
- CVE-2026-48373HIGHCVSS 7.8EG 7.82026-07-17
Acrobat Reader is 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 that a victim must open a ma…
- CVE-2026-48422HIGHCVSS 7.8EG 7.82026-08-25
Substance3D - Sampler is 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 that a victim must op…
- CVE-2026-48423HIGHCVSS 7.8EG 7.82026-08-25
Substance3D - Sampler is 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 that a victim must op…
- CVE-2026-48424HIGHCVSS 7.8EG 7.82026-08-25
Substance3D - Sampler is 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 that a victim must op…
- CVE-2026-48425HIGHCVSS 7.8EG 7.82026-08-25
Substance3D - Sampler is 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 that a victim must op…
- CVE-2026-48428HIGHCVSS 7.8EG 7.82026-08-25
Substance3D - Designer is 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 that a victim must o…
- CVE-2026-48430HIGHCVSS 7.8EG 7.82026-08-25
Substance3D - Designer is 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 that a victim must o…
- CVE-2026-48431HIGHCVSS 7.8EG 7.82026-08-25
Substance3D - Designer is 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 that a victim must o…
- CVE-2026-48432HIGHCVSS 7.8EG 7.82026-08-25
Substance3D - Designer is 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 that a victim must o…
- CVE-2026-48433HIGHCVSS 7.8EG 7.82026-08-25
Substance3D - Designer is 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 that a victim must o…
- CVE-2026-48440HIGHCVSS 8.1EG 8.12026-08-11
ColdFusion is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue …
- CVE-2026-48564HIGHCVSS 8.8EG 8.82026-07-14
Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code over a network.
- CVE-2026-48574HIGHCVSS 7.8EG 7.82026-06-09
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.
- CVE-2026-48689CRITICALCVSS 9.8EG 9.82026-05-26
FastNetMon Community Edition through 1.2.9 contains an off-by-one heap-based buffer overflow in the dynamic_binary_buffer_t class (src/dynamic_binary_buffer.hpp). Five methods (append_dynamic_buffer, append_data_as_pointer, append_data_as_…
- CVE-2026-48690HIGHCVSS 7.1EG 7.12026-05-26
FastNetMon Community Edition through 1.2.9 contains an integer overflow vulnerability in the packet capture buffer allocation. In src/packet_storage.hpp, the allocate_buffer() function computes memory_size_in_bytes as 'buffer_size_in_packe…
- CVE-2026-48691CRITICALCVSS 9.8EG 9.82026-05-26
FastNetMon Community Edition through 1.2.9 contains an integer overflow in the BGP AS_PATH attribute encoder. In src/bgp_protocol.hpp, the IPv4UnicastAnnounce::get_attributes() function computes attribute_length as 'sizeof(bgp_as_path_segm…
- CVE-2026-48914MEDIUMCVSS 6.7EG 6.72026-06-12
A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by subm…
- CVE-2026-4892HIGHCVSS 8.4EG 8.42026-05-11
A heap-based out-of-bounds write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute arbitrary code with root privileges via a crafted DHCPv6 packet.
- CVE-2026-48994MEDIUMCVSS 5.9EG 5.92026-06-10
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-24, a missing check of a return value could lead to a heap buffer over-write in the MAT decoder on 32-bit …
- CVE-2026-49035HIGHCVSS 8.1EG 8.12026-07-23
The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution (RCE) has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurati…
- CVE-2026-49164CRITICALCVSS 9.8EG 9.82026-07-14
Heap-based buffer overflow in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.
- CVE-2026-49172CRITICALCVSS 9.8EG 9.82026-07-14
Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network.
- CVE-2026-49175HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally.
- CVE-2026-49178HIGHCVSS 8.8EG 8.82026-07-14
Heap-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.
- CVE-2026-49184HIGHCVSS 7.8EG 8.42026-07-14
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
- CVE-2026-49429HIGHCVSS 7.8EG 7.82026-08-19
The ZFS_IOC_USERSPACE_MANY ioctl, used by zfs-userspace(8), truncated a 64-bit output buffer size to a 32-bit integer for the kernel allocation, but used the original 64-bit size as the buffer limit when writing records. A local user with…
- CVE-2026-49430HIGHCVSS 7.8EG 7.82026-08-19
The ZFS_IOC_RECV_NEW ioctl, in the heal receive path, similarly truncated a 64-bit payload size to a 32-bit integer for allocation, then used the original 64-bit size as the length for a byteswap operation. A local user with the "receive"…
- CVE-2026-49790HIGHCVSS 7.8EG 7.82026-07-14
Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability
- CVE-2026-49793HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.
- CVE-2026-49796HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally.
- CVE-2026-49797HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
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