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CVE-2026-26965 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: February 25, 2026

FreeRDP - Remote Code Execution

Published: February 25, 2026Updated: February 25, 2026Remote Exploitable

Overview

FreeRDP < 3.23.0 contains a heap out-of-bounds write caused by improper bounds checking in the RLE planar decode path, letting a malicious RDP server overwrite function pointers on the client, exploit requires a malicious server.

Severity & Score

Severity: High

CVSS Score: 8.8

Impact

A malicious RDP server can overwrite client memory, leading to arbitrary code execution on the client system.

Mitigation

Update to version 3.23.0 or later.

References

https://github.com/FreeRDP/FreeRDP/commit/a0be5cb87d760bb1c803ad1bb835aa1e73e62abc
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5vgf-mw4f-r33h

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Details

CVE ID: CVE-2026-26965
Severity: High
CVSS Score: 8.8
Type: undefined
Status: new

CWE

CWE-787

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H