CVE-2026-33985 PUBLISHED

FreeRDP: ClearCodec Glyph Cache Count Desync - Heap OOB Read

Assigner: GitHub_M
Reserved: 24.03.2026 Published: 30.03.2026 Updated: 30.03.2026

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, pixel data from adjacent heap memory is rendered to screen, potentially leaking sensitive data to the attacker. This issue has been patched in version 3.24.2.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:L
CVSS Score: 5.9

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	None
User Interaction	Required	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	FreeRDP
Product	FreeRDP
Versions	Version < 3.24.2 is affected

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-x6gr-8p7h-5h85
https://github.com/FreeRDP/FreeRDP/commit/c49d1ad43b8c7b32794d0250f2623c2dccd7ef25

Problem Types

CWE-125: Out-of-bounds Read CWE
CWE-131: Incorrect Calculation of Buffer Size CWE