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CWE-122

3,685 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().

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CVEs (3,685)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Graphic Fonts allows an unauthorized attacker to execute code over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows kernel32.dll allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Oct 27, 2026
Oct 13, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 27, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an authorized attacker to execute code over a network.
-
-
Oct 16, 2026
Oct 13, 2026
N/A· v4
7.2 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
-
-
Oct 13, 2026
Oct 13, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
1Microsoft
3365 Apps
Office 2021Office 2024
Oct 15, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
1Microsoft
3365 Apps
Office 2021Office 2024
Oct 15, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
1Microsoft
3365 Apps
Office 2021Office 2024
Oct 15, 2026
Oct 13, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
1Microsoft
4365 Apps
Microsoft 365Office 2021+1 more
Oct 15, 2026
Oct 13, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
1Microsoft
3365 Apps
Office 2021Office 2024
Oct 15, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
1Microsoft
3365 Apps
Office 2021Office 2024
Oct 15, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
1Microsoft
3365 Apps
Office 2021Office 2024
Oct 15, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
1Microsoft
3365 Apps
Office 2021Office 2024
Oct 15, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
1Microsoft
3365 Apps
Office 2021Office 2024
Oct 15, 2026
Oct 13, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
1Microsoft
3365 Apps
Office 2021Office 2024
Oct 15, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
-
-
Oct 22, 2026
Oct 13, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 27, 2026
Oct 13, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.
-
-
Oct 14, 2026
Oct 13, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Adobe Framemaker is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a...Show more
Adobe Framemaker is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less