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CVE-2026-121401VulnerabilityPublished

FreeRDP before 3.32.2 contains a denial of service vulnerability where rdg_process_packet dispatches a

Source GCVE Database

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Authoritative record:CVE-2026-121401· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium : upgrade to 3.32.2 when convenient.

Data as of 3 Nov 2026, 16:43 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
Patch
Available – fixed in 3.32.2
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 3 Nov 2026.

What to do

Upgrade FreeRDP to 3.32.2.

Affected software

ProductAffectedFixed in
FreeRDPFreeRDPAffected
  • <3.32.2
Fixed in
  • 3.32.2

AI-suggested

Upgrade FreeRDP to version 3.32.2 or later, where this vulnerability is fixed. No other mitigations are specified.

Description

FreeRDP versions prior to 3.32.2 have a denial of service vulnerability due to improper handling of extended authentication packets. Specifically, the rdg_process_packet function dispatches a PKT_TYPE_EXTENDED_AUTH_MSG without verifying the negotiated mode or authentication context. This allows a malicious or compromised Remote Desktop Gateway to send an extended-auth packet before tunnel authentication, causing a null-pointer dereference that crashes the client application.

References

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