Is there a public exploit for CVE-2026-121407?

No public exploit for CVE-2026-121407 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-121407?

CVE-2026-121407 scores CVSS 7.1 (v4.0), rated high.

What does CVE-2026-121407 affect?

CVE-2026-121407 affects FreeRDP FreeRDP.

7.1 High

FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server's remdeskserverthread that allows authenticated…

CVE-2026-121407

FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server's remdeskserverthread that allows authenticated clients to crash the process via an inverted PDU length check. Attackers can send an 8192-byte remdesk payload declaring an eight-byte PDU length to trigger a fatal StreamSeek assertion, aborting the server and dropping sessions.

Assessment

CVSS: 7.1 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 3 November 2026
Last updated: 3 November 2026
Affected: FreeRDP · FreeRDP
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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