CVE-2025-54764

State: Published
Severity: 6.2 Medium
Published: Oct 20, 2025
Updated: Oct 21, 2025
Reserved: Jul 28, 2025

Description

Mbed TLS before 3.6.5 allows a local timing attack against certain RSA operations, and direct calls to mbedtls_mpi_mod_inv or mbedtls_mpi_gcd.

Scores

CVSS	Score	Vector	Source
3.1	6.2 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	CISA-ADP

Weaknesses

CWE-208 Observable Timing Discrepancy

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-10-ssbleed-mstep/

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