What is CVE-2022-4432?

CVE-2022-4432 is a medium-severity vulnerability in Lenovo Thinkpad X13s, classified under Buffer Over-read. CVSS score: 6.7/10. Published 2023-01-05.

How severe is CVE-2022-4432?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Out-of-bounds Read in Lenovo Thinkpad X13s

CVE-2022-4432

A buffer over-read vulnerability was reported in the ThinkPadX13s BIOS PersistenceConfigDxe driver that could allow a local attacker with elevated privileges to cause information disclosure.

Published 2023-01-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (7.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.1% 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 Thinkpad X13s — versions Versions prior to 1.47
Lenovo Thinkpad X13s
Lenovo Thinkpad X13s Firmware

Weakness classification (CWE)

References

support.lenovo.com/us/en/product_security/LEN-103709 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2022-4432?: CVE-2022-4432 is a medium-severity vulnerability in Lenovo Thinkpad X13s, classified under Buffer Over-read. CVSS score: 6.7/10. Published 2023-01-05.
How severe is CVE-2022-4432?: Medium severity. CVSS v3 base score is 6.7 out of 10.