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 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. |
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 Remote Desktop Client allows an unauthorized attacker to elevate privileges over a network. |
1Microsoft 4Windows 11 24h2 Windows 11 25h2Windows 11 26h1+1 moreJul 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 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 authorized attacker to execute code locally. |
1Microsoft 5365 Apps Office 2016Office 2019+2 moreJul 16, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code 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 authorized attacker to execute code locally. |
1Microsoft 7365 Apps ExcelMicrosoft 365+4 moreJul 16, 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 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 Microsoft Windows Media Foundation 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 Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally. |
Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally. |
Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network. |
1Microsoft 9Windows 10 1809 Windows 10 21h2Windows 10 22h2+6 moreJul 20, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally. |