How severe is CVE-2021-45454?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Amperecomputing Ampere Altra

CVE-2021-45454

Ampere Altra before SRP 1.08b and Altra Max before SRP 2.05 allow information disclosure of power telemetry via HWmon.

Published 2022-08-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

References

amperecomputing.com/product-security/ (Broken Link, Vendor Advisory)
amperecomputing.com/products/security-bulletins/platypus.html (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-45454?: CVE-2021-45454 is a high-severity vulnerability in Amperecomputing Ampere Altra. CVSS score: 7.5/10. Published 2022-08-17.
How severe is CVE-2021-45454?: High severity. CVSS v3 base score is 7.5 out of 10.