What is CVE-2026-21444?

CVE-2026-21444 is a medium-severity vulnerability in Libtpms_project Libtpms, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 5.5/10. Published 2026-01-02.

How severe is CVE-2026-21444?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Libtpms_project Libtpms

CVE-2026-21444

libtpms, a library that provides software emulation of a Trusted Platform Module, has a flaw in versions 0.10.0 and 0.10.1. The commonly used integration of libtpms with OpenSSL 3.x contained a vulnerability related to the returned IV (ini…

Vulnerability class: POODLE (CVE-2014-3566)

EPSS: 0.001 (0.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Libtpms_project Libtpms
Stefanberger Libtpms — versions >= 0.10.0, < 0.10.2

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
security-advisories@github.com (Exploit, x_refsource_MISC, Issue Tracking)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-21444?: CVE-2026-21444 is a medium-severity vulnerability in Libtpms_project Libtpms, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 5.5/10. Published 2026-01-02.
How severe is CVE-2026-21444?: Medium severity. CVSS v3 base score is 5.5 out of 10.