Is there a public exploit for CVE-2026-99221?

No public exploit for CVE-2026-99221 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.

What does CVE-2026-99221 affect?

CVE-2026-99221 affects Linux Linux.

— Unscored

In the Linux kernel, the following vulnerability has been resolved: keys/trustedkeys: return immediately after TPM unseal failure…

CVE-2026-99221

In the Linux kernel, the following vulnerability has been resolved: keys/trustedkeys: return immediately after TPM unseal failure trustedtpmunseal() proceeds to pcrlock() when the TPM unseal operation fails. If pcrlock() succeeds, its return value overwrites the unseal error, causing key instantiation to succeed. Return immediately when unseal fails to preserve the original error.

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 2 November 2026
Last updated: 2 November 2026
Affected: Linux · Linux
Assigner: Linux

At the source

EUVD (ENISA)

References

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