Skip to main content
CVE-2026-121390VulnerabilityPublished Updated

FreeRDP 3.0.0 before 3.32.2 built with WITH_AAD=ON contains a reachable assertion because its ARM gateway response

Affects freerdpSource GCVE Database

0
Compare
Authoritative record:CVE-2026-121390· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium · fixed in 3.32.2+dfsg-0ubuntu0.24.04.1 : update freerdp when convenient.

Data as of 9 Nov 2026, 23:24 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.05.3
CNA (VulnCheck)CVSS 3.14.3
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.32.2+dfsg-0ubuntu0.24.04.1, 3.32.2+dfsg-0ubuntu0.26.10.1, 3.32.2+dfsg-0ubuntu0.26.04.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 9 Nov 2026.

What to do

Upgrade the Ubuntu freerdp3 to 3.32.2+dfsg-0ubuntu0.24.04.1 (package) or 3.32.2+dfsg-0ubuntu0.26.10.1 (package) or 3.32.2+dfsg-0ubuntu0.26.04.1 (package).

Affected software

ProductAffectedFixed in
Ubuntu 26.10freerdp3pkg:deb/ubuntu/freerdp3?arch=source&distro=stonkingOther threatsAffected
  • <3.32.2+dfsg-0ubuntu0.26.10.1
Fixed in
  • 3.32.2+dfsg-0ubuntu0.26.10.1
Ubuntu 26.04 LTSfreerdp3pkg:deb/ubuntu/freerdp3?arch=source&distro=resoluteOther threatsAffected
  • <3.32.2+dfsg-0ubuntu0.26.04.1
Fixed in
  • 3.32.2+dfsg-0ubuntu0.26.04.1
Ubuntu 24.04 LTSfreerdp3pkg:deb/ubuntu/freerdp3?arch=source&distro=nobleOther threatsAffected
  • <3.32.2+dfsg-0ubuntu0.24.04.1
Fixed in
  • 3.32.2+dfsg-0ubuntu0.24.04.1
Ubuntu Pro 24.04 LTSfreerdp2pkg:deb/ubuntu/freerdp2?arch=source&distro=esm-apps/nobleOther threatsAffected
  • 2.10.0+dfsg1-1.1ubuntu1 – 2.11.5+dfsg1-1ubuntu0.1~esm6
12 affected builds
Fixed in–
Ubuntu 22.04 LTSfreerdp2pkg:deb/ubuntu/freerdp2?arch=source&distro=jammyOther threatsAffected
  • 2.3.0+dfsg1-2build1 – 2.6.1+dfsg1-3ubuntu2.11
23 affected builds
Fixed in–
Ubuntu Pro 20.04 LTSfreerdp2pkg:deb/ubuntu/freerdp2?arch=source&distro=esm-infra/focalOther threatsAffected
  • 2.0.0~git20190204.1.2693389a+dfsg1-1 – 2.6.1+dfsg1-0ubuntu0.20.04.2+esm4
17 affected builds
Fixed in–

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

AI-suggested

A patch is available and the issue is fixed in FreeRDP version 3.32.2 and later. Users should update to the fixed package versions provided by Ubuntu security notices (e.g., 3.32.2+dfsg-0ubuntu0.24.04.1, 3.32.2+dfsg-0ubuntu0.26.10.1, 3.32.2+dfsg-0ubuntu0.26.04.1). Standard system updates will apply the necessary fixes.

Description

FreeRDP versions before 3.32.2 built with WITH_AAD=ON contain a reachable assertion vulnerability due to improper handling of the redirectedServerCert field in the ARM gateway response parser. This can cause the client process to abort when a malicious or malformed gateway returns a response with a missing or non-string redirectedServerCert field.

References

Community reviews

Loading reviews…