PT-2026-44989 · Freerdp+1 · Freerdp+1

Kevin-Valerio · Published 2026-05-29 · Updated 2026-06-16 · CVE-2026-45700

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.26.0

Description The planar bitmap decoder contains an out-of-bounds heap write when decoding RLE planar data. In the libfreerdp/codec/planar.c file, the freerdp bitmap decompress planar() function validates the X destination coordinate nXDst against the caller-provided destination stride nDstStep while writing into the internal temporary buffer pTempData. An attacker can bypass this check by using a large nDstStep and a large nXDst, which causes the planar decompress plane rle() function to write past the end of pTempData.

Recommendations Update to version 3.26.0.

Exploit

Fix

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-45700

OPENSUSE-SU-2026:10948-1

USN-8432-1

Affected Products

Freerdp

Ubuntu

References · 20

• 🔥 https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mpxh-8fq3-x8mh · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-45700 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8432-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-45700 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-45700 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-45700 · Security Note
• https://ubuntu.com/security/notices/USN-8432-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-45700 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-45700 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10948-1 · Vendor Advisory
• https://github.com/FreeRDP/FreeRDP/commit/4a065a941ae134a0433d1497c03b3c3eb91b9f85 · Note
• https://suse.com/security/cve/CVE-2026-44420 · Note
• https://suse.com/security/cve/CVE-2026-40033 · Note
• https://suse.com/security/cve/CVE-2026-44421 · Note
• https://t.me/CVEtracker/55303 · Telegram Post