CWE-122
2,524 CVEs • Abstraction: Variant • Likelihood of Exploit: High
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().
CVEs (2,524)
CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS |
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1Microsoft 9Windows 10 1809 Windows 10 21h2Windows 10 22h2+6 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. |
1Microsoft 3Windows 10 1607 Windows Server 2012Windows Server 2016Jul 21, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Web Proxy Auto-Discovery Protocol (WPAD) allows an authorized attacker to elevate privileges locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over a network. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 21, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. |
1Microsoft 11Windows 10 1607 Windows 10 1809Windows 10 21h2+8 moreJul 20, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 9.6 CRITICAL· v3 N/A· v2 Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network. |
1Microsoft 9Windows 10 1809 Windows 10 21h2Windows 10 22h2+6 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows DirectX allows an authorized attacker to elevate privileges locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.0 HIGH· v3 N/A· v2 Buffer over-read in Windows Redirected Drive Buffering allows an authorized attacker to elevate privileges locally. |
1Microsoft 7Windows 10 1607 Windows 10 1809Windows Server 2012+4 moreJul 20, 2026 Jul 14, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over an adjacent network. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Push Notifications allows an authorized attacker to elevate privileges locally. |
1Microsoft 11Windows 10 1607 Windows 10 1809Windows 10 21h2+8 moreJul 20, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to execute code locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Data dll allows an unauthorized attacker to execute code locally. |
1Microsoft 3Windows 11 24h2 Windows 11 25h2Windows 11 26h1Jul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Media allows an authorized attacker to elevate privileges locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally. |