CWE-122
3,695 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 (3,695)
CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS |
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1Microsoft 12Windows 10 1607 Windows 10 1809Windows 10 21h2+9 moreSep 12, 2026 Sep 8, 2026 N/A· v4 7.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
1Microsoft 4Windows 11 24h2 Windows 11 25h2Windows 11 26h1+1 moreSep 10, 2026 Sep 8, 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 7365 Apps ExcelMicrosoft 365+4 moreSep 17, 2026 Sep 8, 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 ExcelMicrosoft 365+4 moreSep 17, 2026 Sep 8, 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. |
Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network. |
1Microsoft 6365 Apps Microsoft 365Office 2016+3 moreSep 17, 2026 Sep 8, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network. |
1Microsoft 7365 Apps ExcelMicrosoft 365+4 moreSep 17, 2026 Sep 8, 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 ExcelMicrosoft 365+4 moreSep 17, 2026 Sep 8, 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 8365 Apps ExcelMicrosoft 365+5 moreSep 17, 2026 Sep 8, 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 ExcelMicrosoft 365+4 moreSep 17, 2026 Sep 8, 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 ExcelMicrosoft 365+4 moreSep 17, 2026 Sep 8, 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 ExcelMicrosoft 365+4 moreSep 17, 2026 Sep 8, 2026 N/A· v4 7.0 HIGH· v3 N/A· v2 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. |
1Microsoft 7365 Apps ExcelMicrosoft 365+4 moreSep 17, 2026 Sep 8, 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 13Windows 10 1607 Windows 10 1809Windows 10 21h2+10 moreSep 24, 2026 Sep 8, 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 execute code locally. |
1Microsoft 8Windows 10 1809 Windows 10 21h2Windows 10 22h2+5 moreSep 10, 2026 Sep 8, 2026 N/A· v4 8.2 HIGH· v3 N/A· v2 Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally. |
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally. |
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network. |
1Microsoft 6365 Apps Microsoft 365Office 2016+3 moreSep 17, 2026 Sep 8, 2026 N/A· v4 6.5 MEDIUM· v3 N/A· v2 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to disclose information over a network. |
1Microsoft 6365 Apps Microsoft 365Office 2019+3 moreSep 17, 2026 Sep 8, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network. |
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. |