What is CVE-2022-35888?

CVE-2022-35888 is a medium-severity vulnerability in Amperecomputing Ampere Altra, classified under Observable Discrepancy. CVSS score: 6.5/10. Published 2022-09-29.

How severe is CVE-2022-35888?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Amperecomputing Ampere Altra

CVE-2022-35888

Ampere Altra and Ampere Altra Max devices through 2022-07-15 allow attacks via Hertzbleed, which is a power side-channel attack that extracts secret information from the CPU by correlating the power consumption with data being processed on the system.

Published 2022-09-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

amperecomputing.com/products/security-bulletins/hertzbleed.html (Vendor Advisory)
developer.arm.com/documentation/ka005111/1-0/ (Technical Description, Third Party Advisory)

Frequently asked questions

What is CVE-2022-35888?: CVE-2022-35888 is a medium-severity vulnerability in Amperecomputing Ampere Altra, classified under Observable Discrepancy. CVSS score: 6.5/10. Published 2022-09-29.
How severe is CVE-2022-35888?: Medium severity. CVSS v3 base score is 6.5 out of 10.