CVE-2025-54764

MEDIUM
Published Oct 20, 2025 Modified Oct 31, 2025 CWE-208

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.

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CVSS v3.1 Score

6.2
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-208 CWE-208

Affected Products

Vendor Product
arm mbed_tls

References

Frequently Asked Questions

What is CVE-2025-54764? +
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. It has a CVSS v3.1 base score of 6.2 (MEDIUM).
How severe is CVE-2025-54764? +
CVE-2025-54764 has a CVSS v3.1 score of 6.2 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2025-54764? +
CVE-2025-54764 affects products from arm, specifically: mbed_tls. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-54764? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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