CWE-122
3,113 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 (3,113)
CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS |
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1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 20, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally. |
1Microsoft 4Windows 11 24h2 Windows 11 25h2Windows 11 26h1+1 moreJul 22, 2026 Jul 14, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 23, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Overlay Filter 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 Win32K allows an authorized attacker to elevate privileges locally. |
1Microsoft 9Windows 10 1607 Windows 10 1809Windows 10 21h2+6 moreJul 22, 2026 Jul 14, 2026 N/A· v4 6.8 MEDIUM· v3 N/A· v2 Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 16, 2026 Jul 14, 2026 N/A· v4 8.4 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally. |
1Microsoft 11Windows 10 1607 Windows 10 1809Windows 10 21h2+8 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Integer overflow or wraparound in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally. |
1Microsoft 9Windows 10 1809 Windows 10 21h2Windows 10 22h2+6 moreJul 16, 2026 Jul 14, 2026 N/A· v4 7.5 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized attacker to deny service over a network. |
1Microsoft 7365 Apps ExcelMicrosoft 365+4 moreJul 15, 2026 Jul 14, 2026 N/A· v4 3.3 LOW· v3 N/A· v2 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. |
1Microsoft 7365 Apps ExcelMicrosoft 365+4 moreJul 15, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Microsoft Office Excel 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 Integer underflow (wrap or wraparound) 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 6.8 MEDIUM· v3 N/A· v2 Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to execute code with a physical attack. |
1Microsoft 11Windows 10 1607 Windows 10 1809Windows 10 21h2+8 moreJul 16, 2026 Jul 14, 2026 N/A· v4 6.6 MEDIUM· v3 N/A· v2 Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a physical attack. |
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 Integer overflow or wraparound 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 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 GDI+ allows an unauthorized attacker to execute code locally. |
1Microsoft 11Windows 10 1607 Windows 10 1809Windows 10 21h2+8 moreJul 22, 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 execute code locally. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreJul 20, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability |
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 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network. |