What’s Vulnerable › Vulnerabilities

CVE-2026-33985: FreeRDP: ClearCodec Glyph Cache Count Desync - Heap OOB Read

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-30 · updated 2026-06-17
• Weakness: CWE-125

Description

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.

Affected products

• FreeRDP: before 3.24.2 — fixed in 3.24.2

How to fix

Upgrade to a fixed version: FreeRDP 3.24.2. Check the vendor advisory for mitigations.

References

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

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