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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().

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CVEs (3,698)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
14Windows 10 1507
Windows 10 1607Windows 10 1809+11 more
Jun 17, 2026
Nov 14, 2023
N/A· v4
8.0 HIGH· v3
N/A· v2
Windows Distributed File System (DFS) Remote Code Execution Vulnerability
1Microsoft
14Windows 10 1507
Windows 10 1607Windows 10 1809+11 more
Jun 17, 2026
Nov 14, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
Microsoft Remote Registry Service Remote Code Execution Vulnerability
1Microsoft
11Windows 10 1607
Windows 10 1809Windows 10 21h2+8 more
Jun 17, 2026
Nov 14, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Windows Hyper-V Elevation of Privilege Vulnerability
1Microsoft
13Windows 10 1507
Windows 10 1607Windows 10 1809+10 more
Jun 17, 2026
Nov 14, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability
1Microsoft
11Windows 10 1507
Windows 10 1607Windows 10 1809+8 more
Jun 17, 2026
Nov 14, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
Windows HMAC Key Derivation Elevation of Privilege Vulnerability
1Microsoft
2Visual Studio 2019
Visual Studio 2022
Jun 17, 2026
Nov 14, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Visual Studio Denial of Service Vulnerability
1Microsoft
13Windows 10 1507
Windows 10 1607Windows 10 1809+10 more
Jun 17, 2026
Nov 14, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
1Microsoft
11Windows 10 1507
Windows 10 1607Windows 10 1809+8 more
Jun 17, 2026
Nov 14, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
2Silabs
Weston Embedded
3Cesium Net
Gecko Software Development KitUc Http
Jun 17, 2026
Nov 14, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a...Show more
A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.Show less
2Silabs
Weston Embedded
3Cesium Net
Gecko Software Development KitUc Http
Jun 17, 2026
Nov 14, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A heap-based buffer overflow vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted set of network packets can lead to arbitrary code execution. An attacker can sen...Show more
A heap-based buffer overflow vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted set of network packets can lead to arbitrary code execution. An attacker can send a malicious packet to trigger this vulnerability.Show less
1Dronecode
1Px4 Drone Autopilot
Jun 17, 2026
Oct 31, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
PX4-Autopilot provides PX4 flight control solution for drones. In versions 1.14.0-rc1 and prior, PX4-Autopilot has a heap buffer overflow vulnerability in the parser function due to the absence of `parserbuf_index` value...Show more
PX4-Autopilot provides PX4 flight control solution for drones. In versions 1.14.0-rc1 and prior, PX4-Autopilot has a heap buffer overflow vulnerability in the parser function due to the absence of `parserbuf_index` value checking. A malfunction of the sensor device can cause a heap buffer overflow with leading unexpected drone behavior. Malicious applications can exploit the vulnerability even if device sensor malfunction does not occur. Up to the maximum value of an `unsigned int`, bytes sized data can be written to the heap memory area. As of time of publication, no fixed version is available.Show less
1Samba
1Samba
Jun 17, 2026
Oct 25, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
A heap-based Buffer Overflow flaw was discovered in Samba. It could allow a remote, authenticated attacker to exploit this vulnerability to cause a denial of service.
2Gnu
Redhat
2Enterprise Linux
Grub2
Jul 21, 2026
Oct 25, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumst...Show more
An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved.Show less
2Fedoraproject
Radare
2Fedora
Radare2
Jun 17, 2026
Oct 20, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based Buffer Overflow in GitHub repository radareorg/radare2 prior to 5.9.0.
1Softether
1Vpn
Jun 17, 2026
Oct 12, 2023
N/A· v4
8.1 HIGH· v3
N/A· v2
A heap-based buffer overflow vulnerability exists in the vpnserver WpcParsePacket() functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. A specially crafted network packet can lead to arbitrary code executi...Show more
A heap-based buffer overflow vulnerability exists in the vpnserver WpcParsePacket() functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. A specially crafted network packet can lead to arbitrary code execution. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.Show less
1Microsoft
2Odbc Driver For Sql Server
Sql Server
Jun 17, 2026
Oct 10, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability
1Microsoft
11Windows 10 1507
Windows 10 1809Windows 10 21h1+8 more
Jun 17, 2026
Oct 10, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Microsoft WDAC ODBC Driver Remote Code Execution Vulnerability
1Microsoft
11Windows 10 1507
Windows 10 1809Windows 10 21h1+8 more
Jun 17, 2026
Oct 10, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability
1Microsoft
2Ole Db Driver For Sql Server
Sql Server
Jun 17, 2026
Oct 10, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Microsoft SQL OLE DB Remote Code Execution Vulnerability
3Fedoraproject
RedhatX.org
3Enterprise Linux
FedoraLibx11
Jun 17, 2026
Oct 10, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges.