QwikSec

Security Database

CVE

CWE

Training

CVE-2026-21444

Published: Jan 2, 2026

Modified: Jan 5, 2026

PUBLISHED

CVSS v3.1

5.5

MEDIUM

Description

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 (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality. Version 0.10.2 fixes the issue. No known workarounds are available.

Vendor	Product	Versions
stefanberger	libtpms	affected `>= 0.10.0, < 0.10.2`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

References

https://github.com/stefanberger/libtpms/security/advisories/GHSA-7jxr-4j3g-p34f

x_refsource_CONFIRM

https://github.com/stefanberger/libtpms/issues/541

x_refsource_MISC

https://github.com/stefanberger/libtpms/commit/33c9ff074cb16c1841ce7d7f33643c17c426743a

x_refsource_MISC

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.