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
2,475 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-122page 46 of 50
- 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-2026-48373HIGHCVSS 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-2026-48564HIGHCVSS 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-2026-49790HIGHCVSS 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.
- CVE-2026-49800HIGHCVSS 7.8EG 7.82026-07-14
Integer overflow or wraparound in Windows Web Proxy Auto-Discovery Protocol (WPAD) allows an authorized attacker to elevate privileges locally.
- CVE-2026-49804MEDIUMCVSS 6.6EG 6.62026-07-14
Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a physical attack.
- CVE-2026-49840CRITICALCVSS 9.1EG 9.12026-06-09
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.1, esl_recv_event() parses Content…
- CVE-2026-49841CRITICALCVSS 9.8EG 9.82026-06-09
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.1, the mod_verto HTTP request hand…
- CVE-2026-50012MEDIUMCVSS 5.5EG 5.52026-07-16
Squid is a caching proxy for the Web. Prior to 7.6, due to an improper input validation bug in cache digest reply handling (peerDigestSwapInMask in src/peer_digest.cc), Squid is vulnerable to a heap-based buffer overflow: a cache digest's …
- CVE-2026-50299MEDIUMCVSS 6.8EG 6.82026-07-14
Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to execute code with a physical attack.
- CVE-2026-50301HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
- CVE-2026-50308HIGHCVSS 7.8EG 7.82026-07-14
Integer underflow (wrap or wraparound) in Windows NTFS allows an unauthorized attacker to execute code locally.
- CVE-2026-50309HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.
- CVE-2026-50313HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
- CVE-2026-50327HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Media allows an authorized attacker to execute code locally.
- CVE-2026-50330CRITICALCVSS 9.8EG 9.82026-07-14
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-50332HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-50336HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Media allows an authorized attacker to elevate privileges locally.
- CVE-2026-50347HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Data dll allows an unauthorized attacker to execute code locally.
- CVE-2026-50362HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to execute code locally.
- CVE-2026-50363HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
- CVE-2026-50370HIGHCVSS 8.8EG 8.82026-07-14
Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over an adjacent network.
- CVE-2026-50372HIGHCVSS 7.0EG 7.02026-07-14
Buffer over-read in Windows Redirected Drive Buffering allows an authorized attacker to elevate privileges locally.
- CVE-2026-50375HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows DirectX allows an authorized attacker to elevate privileges locally.
- CVE-2026-50380CRITICALCVSS 9.6EG 9.62026-07-14
Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.
- CVE-2026-50386HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
- CVE-2026-50407HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.
- CVE-2026-50417HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.
- CVE-2026-50447CRITICALCVSS 9.8EG 9.82026-07-14
Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over a network.
- CVE-2026-50448HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
- CVE-2026-50461HIGHCVSS 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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