SB2026070928 - Red Hat Enterprise Linux 9 update for freerdp

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Main Vulnerability Database SB2026070928

SB2026070928 - Red Hat Enterprise Linux 9 update for freerdp

Published: July 9, 2026

Security Bulletin ID SB2026070928
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds write (CVE-ID: CVE-2026-45700)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service and potentially execute arbitrary code.

The vulnerability exists due to out-of-bounds write in freerdp_bitmap_decompress_planar() and planar_decompress_plane_rle() in the planar bitmap decoder when decoding RLE planar data with a large destination stride and X destination coordinate that trigger the temp-buffer code path. A remote attacker can send specially crafted planar bitmap data to cause a denial of service and potentially execute arbitrary code.

No FreeRDP server or client is affected; the issue affects third-party implementations that use their own decoding system and utilize the FreeRDP planar decoder.


Remediation

Install update from vendor's website.

References