CVE-2026-22852

Publication date 14 January 2026

Last updated 18 March 2026

Ubuntu priority

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client when processing Audio Input (AUDIN) format lists. audin_process_formats reuses callback->formats_count across multiple MSG_SNDIN_FORMATS PDUs and writes past the newly allocated formats array, causing memory corruption and a crash. This vulnerability is fixed in 3.20.1.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
freerdp	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not in release
	22.04 LTS jammy	Not in release
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
freerdp2	25.10 questing	Not in release
	25.04 plucky	Ignored end of life, was needs-triage
	24.04 LTS noble	Needs evaluation
	22.04 LTS jammy	Needs evaluation
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
freerdp3	25.10 questing	Fixed 3.16.0+dfsg-2ubuntu0.3
	25.04 plucky	Ignored end of life, was needs-triage
	24.04 LTS noble	Fixed 3.5.1+dfsg1-0ubuntu1.4
	22.04 LTS jammy	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
freerdp3	Upstream: cd1ffa1

References

Related Ubuntu Security Notices (USN)

USN-8105-1
FreeRDP vulnerabilities
18 March 2026