What is CVE-2026-4135?

CVE-2026-4135 is a medium-severity vulnerability in Lenovo Software Fix, classified under Improper Link Resolution Before File Access. CVSS score: 6.6/10. Published 2026-04-15.

How severe is CVE-2026-4135?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Vulnerability in Lenovo Software Fix

CVE-2026-4135

During an internal security assessment, a potential vulnerability was discovered in Lenovo Software Fix, that during installation could allow a local authenticated user to perform an arbitrary file write with elevated privileges.

Published 2026-04-15 · last modified 2026-08-24.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (4.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

Lenovo Software Fix — versions 0
Lenovo Software Fix

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

support.lenovo.com/us/en/product_security/LEN-213829 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-4135?: CVE-2026-4135 is a medium-severity vulnerability in Lenovo Software Fix, classified under Improper Link Resolution Before File Access. CVSS score: 6.6/10. Published 2026-04-15.
How severe is CVE-2026-4135?: Medium severity. CVSS v3 base score is 6.6 out of 10.