CWE-122
3,698 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 (3,698)
CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS |
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1Microsoft 6365 Apps Microsoft 365Office 2019+3 moreAug 14, 2026 Aug 11, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally. |
1Microsoft 6365 Apps Microsoft 365Office 2016+3 moreAug 14, 2026 Aug 11, 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 2Exchange Server Exchange Server Subscription EditionAug 14, 2026 Aug 11, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network. |
1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreAug 16, 2026 Aug 11, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 16, 2026 Aug 11, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows GDI+ allows an authorized attacker to execute code locally. |
1Microsoft 3.net Visual Studio 2022Visual Studio 2026Oct 28, 2026 Aug 11, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 16, 2026 Aug 11, 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 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 17, 2026 Aug 11, 2026 N/A· v4 6.7 MEDIUM· v3 N/A· v2 Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 17, 2026 Aug 11, 2026 N/A· v4 6.7 MEDIUM· v3 N/A· v2 Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally. |
1Microsoft 3.net Visual Studio 2022Visual Studio 2026Oct 28, 2026 Aug 11, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally. |
1Microsoft 7Windows 10 1607 Windows 10 1809Windows Server 2012+4 moreSep 2, 2026 Aug 11, 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 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 16, 2026 Aug 11, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Integer overflow or wraparound in Windows GDI+ allows an unauthorized attacker to execute code over a network. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 16, 2026 Aug 11, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network. |
1Microsoft 6Windows 11 23h2 Windows 11 24h2Windows 11 25h2+3 moreAug 13, 2026 Aug 11, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges locally. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 16, 2026 Aug 11, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network. |
Heap-based buffer overflow in Windows SMB Client allows an authorized attacker to elevate privileges locally. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 16, 2026 Aug 11, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 16, 2026 Aug 11, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreOct 24, 2026 Aug 11, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network. |
1Microsoft 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreAug 16, 2026 Aug 11, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to execute code over a network. |