CVE-2026-22855

Publication date 14 January 2026

Last updated 30 June 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.4 · High

Score breakdown

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap out-of-bounds read occurs in the smartcard SetAttrib path when cbAttrLen does not match the actual NDR buffer length. This vulnerability is fixed in 3.20.1.

Status

Package Ubuntu Release Status
freerdp 26.04 LTS resolute Not in release
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 26.04 LTS resolute Not in release
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 26.04 LTS resolute
Fixed 3.20.2+dfsg-1
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

Severity score breakdown

CVSS version:

Base score 5.6 · Medium

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P

Base score 7.4 · High

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

References

Related Ubuntu Security Notices (USN)

    • USN-8105-1
    • FreeRDP vulnerabilities
    • 18 March 2026

Other references

Access our resources on patching vulnerabilities