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CWE-122

3,113 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 (3,113)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
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.
1Deltaww
1Wplsoft
Jun 17, 2026
Oct 9, 2023
N/A· v4
5.7 MEDIUM· v3
2.7 LOW· v2
A vulnerability was found in Delta Electronics WPLSoft up to 2.51 and classified as problematic. This issue affects some unknown processing of the component Modbus Data Packet Handler. The manipulation leads to heap-base...Show more
A vulnerability was found in Delta Electronics WPLSoft up to 2.51 and classified as problematic. This issue affects some unknown processing of the component Modbus Data Packet Handler. The manipulation leads to heap-based buffer overflow. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-241583. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.Show less
2Fedoraproject
Imagemagick
3Extra Packages For Enterprise Linux
FedoraImagemagick
Jun 17, 2026
Oct 4, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
A heap-based buffer overflow vulnerability was found in coders/tiff.c in ImageMagick. This issue may allow a local attacker to trick the user into opening a specially crafted file, resulting in an application crash and...Show more
A heap-based buffer overflow vulnerability was found in coders/tiff.c in ImageMagick. This issue may allow a local attacker to trick the user into opening a specially crafted file, resulting in an application crash and denial of service.Show less
7Canonical
DebianFedoraproject+4 more
39Bootstrap Os
Codeready Linux BuilderCodeready Linux Builder Eus+36 more
Jun 17, 2026
Oct 3, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES env...Show more
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.Show less
2Fedoraproject
Vim
2Fedora
Vim
Jun 17, 2026
Oct 2, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1969.