CVE-2025-54764

MEDIUMNVD 6.26.2—Trending — 3 sources updated this week

6.2

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.

CVSS v3: 6.2
EG Score: 6.2(medium)
EPSS: 6.6%
KEV: Not listed

Published

October 20, 2025

Last Modified

October 31, 2025

References (2)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-208

Data Freshness Timeline

(refreshed 11× in last 7d / 11× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 20:32 UTCEG score recompute
2026-05-29 20:32 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-54764?

CVE-2025-54764 is a medium vulnerability published on October 20, 2025. Mbed TLS before 3.6.5 allows a local timing attack against certain RSA operations, and direct calls to mbedtlsmpimodinv or mbedtlsmpi_gcd.

When was CVE-2025-54764 disclosed?

CVE-2025-54764 was first published in the National Vulnerability Database on October 20, 2025, with the most recent update on October 31, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-54764 actively exploited?

CVE-2025-54764 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-54764?

CVE-2025-54764 has a CVSS v3 base score of 6.2 (NVD).

How do I remediate CVE-2025-54764?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-54764, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-54764

📅 Published

🔄 Last Modified

🔗 References (2)