CVE-2022-48189
Telemetry drift only. No threshold crossed and no authority ruling changed.
CVE record, CISA KEV and EPSS as of 2026-10-18.
CVEs like this one computed, by meaning
What to do now held facts and links
- Upgrade to the fixed version for your release line, or later: thinkpad p1 gen 1.16; thinkpad p1 gen 1.22; thinkpad p1 gen 1.27; thinkpad p1 gen 1.46; thinkpad e14 gen 1.16; thinkpad e14 gen 1.18 upper bounds of the CVE record's affected ranges
- Record your decision, dated and frozen with today's evidence: patch by a date · mitigated by a compensating control · deferred · accepted the risk · not affected
- Check your version against the ranges this record publishes.
What it is stated by the CNA
An SMM driver input validation vulnerability in the BIOS of some ThinkPad models could allow an attacker with local access and elevated privileges to execute arbitrary code.
- weakness
- CWE-20 Improper Input Validation
- affected
- Lenovo ThinkPad BIOS
- published ranges
- lenovo thinkpad e14 firmware < 1.23; lenovo thinkpad e14 gen 2 firmware < 1.55; lenovo thinkpad e14 gen 4 firmware < 1.18; lenovo thinkpad e14 gen 4 firmware < 1.16; and 71 more on the CVE page
- first unaffected version, by branch
- thinkpad p1 gen 1.16; thinkpad p1 gen 1.22; thinkpad p1 gen 1.27; thinkpad p1 gen 1.46; thinkpad e14 gen 1.16; thinkpad e14 gen 1.18
- severity
- 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- assigned by
- lenovo
- published
- 2023-10-30
check us support.lenovo.com
Exploit code held, dated
- exploit code
- None held in the PoC-in-GitHub feed. A public repository changes this brief.
What moved held, dated
| date | EPSS | event |
|---|---|---|
| 1 Nov 2023 | 0.00042 | |
| 17 Mar 2025 | 0.00018 | scoring model v2025.03.14 |
| 19 Mar 2025 | 0.00019 | |
| 20 Mar 2025 | 0.00025 | |
| 25 Mar 2025 | 0.00022 | |
| 29 Mar 2025 | 0.00028 | |
| 30 Mar 2025 | 0.00022 | |
| 28 Jul 2025 | 0.00026 | |
| 16 Sep 2025 | 0.00027 | |
| 17 Sep 2025 | 0.00026 | |
| 18 Nov 2025 | 0.00043 | |
| 21 Nov 2025 | 0.00026 | |
| 16 Dec 2025 | 0.00022 | |
| 23 Jan 2026 | 0.00026 | |
| 9 Apr 2026 | 0.00022 | |
| 15 Jun 2026 | 0.00195 | scoring model v2026.06.15 |
16 observations held. A step marked with a scoring model moved because the measurement was replaced, not because the vulnerability changed.
Outside the record researched, cited
This section reads the record's references and adds cited findings from outside it. It needs an account. Everything above is held facts and is complete without it.
What would change this brief held, dated
- CISA KEV
- Not listed in the catalogue we hold. A listing changes this brief.
- exploit probability
- 0.00 on 2026-06-15 (FIRST's EPSS, a probability and not evidence of exploitation). Next band line: 10% (0.10). Crossing a line changes this brief.
- fix
- Held: thinkpad p1 gen 1.16; thinkpad p1 gen 1.22; thinkpad p1 gen 1.27; thinkpad p1 gen 1.46; thinkpad e14 gen 1.16; thinkpad e14 gen 1.18. A newer fix from the CNA or OSV changes this brief.
How to check this
Every value above is held with two dates: when it was true upstream (as_of) and when we recorded it (tx_from). Re-derive the exploit probability as it stood on any date:
SELECT value, source, source_version, as_of, tx_from
FROM volatile_valid_as_of('CVE-2022-48189', '2026-10-31T23:59:59.999999Z', now());