Improper input validation in Lenovo ThinkPad BIOS
Priority LOW 29CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.
Why it matters now
EPSS 0.00273 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Lenovo | ThinkPad BIOS | various | — | No fix listed | CNA |
- ThinkPad BIOS VendorLenovo Affected various Fixed in — No fix listed CNA
CPE configurations NVD · 28
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:lenovo:bios:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_11e_3rd_gen:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_11e_4th_gen:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_11e_5th_gen:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_11e_yoga_gen_6:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_13_gen_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_e14_gen_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_e15_gen_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l13:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l13_gen_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
- cpe:2.3:o:lenovo:bios:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_11e_3rd_gen:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_11e_4th_gen:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_11e_5th_gen:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_11e_yoga_gen_6:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_13_gen_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_e14_gen_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_e15_gen_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l13:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l13_gen_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
Show 18 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:lenovo:thinkpad_l13_yoga:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l13_yogo_gen_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l14:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l14_gen_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l15:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l15_gen_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l380:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l380_yoga:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l390:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_l390_yoga:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_t460:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_x12_detachable_gen_1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_x260:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_x380_yoga:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_yoga_11e_3rd_gen:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_yoga_11e_4th_gen:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:h:lenovo:thinkpad_yoga_370:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:bios:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
- cpe:2.3:h:lenovo:thinkpad_l13_yoga:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l13_yogo_gen_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l14:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l14_gen_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l15:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l15_gen_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l380:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l380_yoga:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l390:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_l390_yoga:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_t460:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_x12_detachable_gen_1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_x260:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_x380_yoga:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_yoga_11e_3rd_gen:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_yoga_11e_4th_gen:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:h:lenovo:thinkpad_yoga_370:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:bios:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3452
- 2026-10-03 Alias added: GHSA-8f7w-9jvr-vccr
References
More Lenovo Bios vulnerabilities
- TI-2016-04545 The BIOS for Lenovo ThinkCentre E93, M6500t/s, M6600, M6600q, M6600t/s, M73p, M800, M83… CVSS 3.0HIGH 7.8
- TI-2017-02869 Some Lenovo brand notebook systems do not have write protections properly configured in… CVSS 3.0MEDIUM 6.7
- TI-2016-06777 Cryptographic flaw in Lenovo Notebook models 110-14IBR/110-15IBR, B70-80, E31-80, E40-80… CVSS 3.0MEDIUM 4.4
Sources
- CVE-2021-3452 · CVE Program
- CVE-2021-3452 · NVD
- FIRST EPSS
- GHSA-8f7w-9jvr-vccr · GitHub Advisory Database · CC BY 4.0
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