What is CVE-2026-63427?

CVE-2026-63427 is a high-severity vulnerability in Lenovo Software Fix, classified under Authentication Bypass by Spoofing. CVSS score: 7.8/10. Published 2026-09-10.

How severe is CVE-2026-63427?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Lenovo Software Fix

CVE-2026-63427

An authentication bypass vulnerability was discovered in Lenovo Software Fix that could allow a local authenticated user to perform arbitrary code execution with elevated privileges.

Published 2026-09-10 · last modified 2026-09-15.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (8.9th percentile), scored 2026-10-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Lenovo Software Fix

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

support.lenovo.com/us/en/downloads/ds101291-rescue-and-smart-assistant-lmsa (product, patch)
support.lenovo.com/us/en/product_security/LEN-217409 (vendor-advisory)

Frequently asked questions

What is CVE-2026-63427?: CVE-2026-63427 is a high-severity vulnerability in Lenovo Software Fix, classified under Authentication Bypass by Spoofing. CVSS score: 7.8/10. Published 2026-09-10.
How severe is CVE-2026-63427?: High severity. CVSS v3 base score is 7.8 out of 10.