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VulnerabilityPublished Updated

CVE-2026-23533: freerdp2 regression

Affects freerdp2Source GCVE Database

0

Not known to be exploited · fixed in 2.2.0+dfsg1-0ubuntu0.18.04.4+esm4 : update freerdp2 when convenient.

Data as of 27 Oct 2026, 06:42 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Patch
Available – fixed in 2.2.0+dfsg1-0ubuntu0.18.04.4+esm4, 2.6.1+dfsg1-0ubuntu0.20.04.2+esm2, 2.6.1+dfsg1-3ubuntu2.9 +1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu Pro 24.04 LTSfreerdp2pkg:deb/ubuntu/freerdp2?arch=source&distro=esm-apps/nobleOther threatsAffected
  • <2.11.5+dfsg1-1ubuntu0.1~esm4
Fixed in
  • 2.11.5+dfsg1-1ubuntu0.1~esm4
Ubuntu 22.04 LTSfreerdp2pkg:deb/ubuntu/freerdp2?arch=source&distro=jammyOther threatsAffected
  • <2.6.1+dfsg1-3ubuntu2.9
Fixed in
  • 2.6.1+dfsg1-3ubuntu2.9
Ubuntu Pro 20.04 LTSfreerdp2pkg:deb/ubuntu/freerdp2?arch=source&distro=esm-infra/focalOther threatsAffected
  • <2.6.1+dfsg1-0ubuntu0.20.04.2+esm2
Fixed in
  • 2.6.1+dfsg1-0ubuntu0.20.04.2+esm2
Ubuntu Pro 18.04 LTSfreerdp2pkg:deb/ubuntu/freerdp2?arch=source&distro=esm-infra/bionicOther threatsAffected
  • <2.2.0+dfsg1-0ubuntu0.18.04.4+esm4
Fixed in
  • 2.2.0+dfsg1-0ubuntu0.18.04.4+esm4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

USN-8004-1 fixed vulnerabilities in FreeRDP. The update for CVE-2026-23533 introduced a regression. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Kim Dong Han discovered that FreeRDP did not correctly validate the size of certain variables, which could cause a buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code.

References

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