PT-2026-2929 · Freerdp+3 · Freerdp+3

Ehdgks0627 · CVE-2026-22851 · Published 2026-01-01 · Updated 2026-06-11

Positive Technologies (AI Summary)

CVSS v4.0

8.2

High

Base vector

AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.20.1

Description FreeRDP, a free implementation of the Remote Desktop Protocol, contains a flaw due to a race condition between the RDPGFX dynamic virtual channel thread and the SDL render thread. This condition results in a heap use-after-free issue. Specifically, a pointer to sdl->primary (SDL Surface) is accessed after being freed during RDPGFX ResetGraphics handling.

Recommendations Update to version 3.20.1 or later.

Exploit

Fix

DoS

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

BDU:2026-00623

CVE-2026-22851

GHSA-8G87-6PVC-WH99

OPENSUSE-SU-2026:10059-1

OPENSUSE-SU-2026:20339-1

SUSE-SU-2026:0345-1

USN-8105-1

Affected Products

Freerdp

Linuxmint

Red Os

Ubuntu

References · 134

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22851.json · Exploit
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8g87-6pvc-wh99 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23531 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-22858 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8105-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-22853 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20339-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10059-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23883 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-22857 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-22851 · Security Note
• https://ubuntu.com/security/CVE-2026-25959 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-22851 · Security Note
• https://ubuntu.com/security/CVE-2026-22859 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-22854 · Vendor Advisory