CVE-2022-3728 — A vulnerability was reported in ThinkPad T14s Gen 3 and X13 Gen3 that could caus

A vulnerability was reported in ThinkPad T14s Gen 3 and X13 Gen3 that could cause the BIOS tamper detection mechanism to not trigger under specific circumstances which could allow unauthorized access.

01What is this vulnerability?

A vulnerability was reported in ThinkPad T14s Gen 3 and X13 Gen3 that could cause the BIOS tamper detection mechanism to not trigger under specific circumstances which could allow unauthorized access.

02Affected products

Vendor	Product	Versions
—	Lenovo / ThinkPad T14s Gen 3 BIOS —	—
—	Lenovo / ThinkPad X13 Gen3 BIOS —	—

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-10-09T20:48:31.533Z
• Last modified: 2024-09-19T13:50:29.916Z

09References

• support.lenovo.com — https://support.lenovo.com/us/en/product_security/LEN-106014