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 7365 Apps ExcelMicrosoft 365+4 moreJul 16, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized 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 7365 Apps Microsoft 365Office 2019+4 moreJul 16, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code 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 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 1Minecraft Bedrock Dedicated Server Jul 22, 2026 Jul 14, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Heap-based buffer overflow in Minecraft Bedrock Dedicated Server allows an unauthorized attacker to execute code over a network. |
1Microsoft 8Terminal Windows 10 21h2Windows 10 22h2+5 moreJul 22, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code locally. |
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 Integer overflow or wraparound in Windows Active Directory allows an authorized attacker to elevate privileges locally. |
1Microsoft 11Windows 10 1607 Windows 10 1809Windows 10 21h2+8 moreJul 22, 2026 Jul 14, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally. |
1Microsoft 7Windows 10 1607 Windows 10 1809Windows Server 2012+4 moreJul 21, 2026 Jul 14, 2026 N/A· v4 8.0 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to elevate privileges over an adjacent 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 Hyper-V allows an authorized attacker to elevate privileges locally. |
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 Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally. |
1Microsoft 9Windows 10 1809 Windows 10 21h2Windows 10 22h2+6 moreJul 16, 2026 Jul 14, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally. |
1Microsoft 11Windows 10 1607 Windows 10 1809Windows 10 21h2+8 moreJul 22, 2026 Jul 14, 2026 N/A· v4 6.8 MEDIUM· v3 N/A· v2 Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack. |
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 Media allows an unauthorized attacker to execute code locally. |
1Microsoft 7Windows 10 1607 Windows 10 1809Windows Server 2012+4 moreJul 22, 2026 Jul 14, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Heap-based buffer overflow in Windows DHCP Server 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 Print Spooler Components allows an authorized attacker to elevate privileges locally. |
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 21, 2026 Jul 14, 2026 N/A· v4 6.8 MEDIUM· v3 N/A· v2 Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to execute code with a physical attack. |
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 Win32K allows an authorized attacker to elevate privileges locally. |