Is there a public exploit for CVE-2026-121959?

No public exploit for CVE-2026-121959 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-2026-121959?

CVE-2026-121959 scores CVSS 7.1 (v4.0), rated high.

What does CVE-2026-121959 affect?

CVE-2026-121959 affects FreeRDP FreeRDP.

7.1 High

FreeRDP before 3.32.2 contains an infinite loop vulnerability in websocketcontextread that fails to handle a zero BIO result with payload…

CVE-2026-121959

FreeRDP before 3.32.2 contains an infinite loop vulnerability in websocketcontextread that fails to handle a zero BIO result with payload outstanding. A malicious RD Gateway can send a truncated WebSocket frame followed by a TLS closenotify, causing a client thread to spin and consume CPU until killed.

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: 4 November 2026
Last updated: 4 November 2026
Affected: FreeRDP · FreeRDP
Assigner: VulnCheck

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

At the source

EUVD (ENISA)

References

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