CVE-2026-121960: FreeRDP before 3.32.2 contains a denial of service vulnerability in the NLA-enabled shadow server when a CredS

Routine

HIGH 7.5REMOTE

CVE-2026-121960 is a high-severity flaw (CVSS 7.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FreeRDP before 3.32.2 contains a denial of service vulnerability in the NLA-enabled shadow server when a CredSSP TSRequest omits negoTokens. Unauthenticated attackers can send a crafted seven-byte TSRequest containing only the version field to trigger a fatal WINPR_ASSERT and abort the server process.

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	n/a
CISA exploited list	No
Weakness	CWE-617
Published	2026-11-04
Last modified	2026-11-04

Publisher (CNA): VulnCheck

Last updated 2026-11-04 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-11-04 16:17 UTCPublished CVE record published
2026-11-04 19:17 UTCUpdated Record last modified

Advisories and coverage

Research and news

VulDB Recent Entries: CVE-2026-121960 | FreeRDP up to 3.32.1 Shadow Server input validation 2026-11-04
Vulners Bulletins: CVE-2026-121960 2026-11-04

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-121960?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-121960 being exploited?

CVE-2026-121960 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-121960 affect?

CVE-2026-121960 affects affected software. Severity is high (CVSS 7.5). FreeRDP before 3.32.2 contains a denial of service vulnerability in the NLA-enabled shadow server when a CredSSP TSRequest omits negoTokens. Unauthenticated attackers can send a crafted seven-byte TSRequest containing only the version field

How urgent is CVE-2026-121960?

Priority 31/100. High severity; Remotely exploitable, no login, no user action

References

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