Time-of-check time-of-use race condition in Lenovo System x
Priority LOW 28CWE-367Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- 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 SMI callback function used in the legacy BIOS mode USB drivers in some legacy Lenovo and IBM System x servers may allow arbitrary code execution. Servers operating in UEFI mode are not affected.
Why it matters now
EPSS 0.0023 13th 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 | System x | various | — | No fix listed | CNA |
| IBM | System x | various | — | No fix listed | CNA |
- System x VendorLenovo Affected various Fixed in — No fix listed CNA
- System x VendorIBM Affected various Fixed in — No fix listed CNA
CPE configurations NVD · 37
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:lenovo:bladecenter_hs23_firmware:*:*:*:*:*:*:*:* | before tke170b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:bladecenter_hs23:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:bladecenter_hs23e_firmware:*:*:*:*:*:*:*:* | before ahe172b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:bladecenter_hs23e:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:compute_node-x440_firmware:*:*:*:*:*:*:*:* | before cge128a | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:compute_node-x440:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:flex_system_x220_firmware:*:*:*:*:*:*:*:* | before kse170b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:flex_system_x220:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:flex_system_x240_firmware:*:*:*:*:*:*:*:* | before b2e172b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:flex_system_x240:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
- cpe:2.3:o:lenovo:bladecenter_hs23_firmware:*:*:*:*:*:*:*:* Versions before tke170b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:bladecenter_hs23:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:bladecenter_hs23e_firmware:*:*:*:*:*:*:*:* Versions before ahe172b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:bladecenter_hs23e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:compute_node-x440_firmware:*:*:*:*:*:*:*:* Versions before cge128a Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:compute_node-x440:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:flex_system_x220_firmware:*:*:*:*:*:*:*:* Versions before kse170b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:flex_system_x220:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:flex_system_x240_firmware:*:*:*:*:*:*:*:* Versions before b2e172b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:flex_system_x240:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
Show 27 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:lenovo:flex_system_x440_firmware:*:*:*:*:*:*:*:* | before cne172b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:flex_system_x440:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:nextscale_nx360_m4_firmware:*:*:*:*:*:*:*:* | before fhe132b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:nextscale_nx360_m4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3300_m4_firmware:*:*:*:*:*:*:*:* | before yae166b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:system_x3300_m4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3500_m4_firmware:*:*:*:*:*:*:*:* | before y5e170b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:system_x3500_m4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3530_m4_firmware:*:*:*:*:*:*:*:* | before bee174b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:system_x3530_m4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3550_m4_firmware:*:*:*:*:*:*:*:* | before d7e174b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:system_x3550_m4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3630_m4_firmware:*:*:*:*:*:*:*:* | before bee174b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:system_x3630_m4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3650_m4_firmware:*:*:*:*:*:*:*:* | before vve172b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:system_x3650_m4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3650_m4_bd_firmware:*:*:*:*:*:*:*:* | before vve172b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:system_x3650_m4_bd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3650_m4_hd_firmware:*:*:*:*:*:*:*:* | before vve172b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:system_x3650_m4_hd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3750_m4_firmware:*:*:*:*:*:*:*:* | before a5e130a | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:system_x3750_m4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:system_x3750_m4_firmware:*:*:*:*:*:*:*:* | before koe170b | Vulnerable | Lenovo |
| cpe:2.3:o:lenovo:idataplex_dx360_m4_firmware:*:*:*:*:*:*:*:* | before tde168b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:idataplex_dx360_m4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
| cpe:2.3:o:lenovo:idataplex_dx360_m4_water_cooled_firmware:*:*:*:*:*:*:*:* | before tde168b | Vulnerable | Lenovo |
| cpe:2.3:h:lenovo:idataplex_dx360_m4_water_cooled:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Lenovo |
- cpe:2.3:o:lenovo:flex_system_x440_firmware:*:*:*:*:*:*:*:* Versions before cne172b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:flex_system_x440:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:nextscale_nx360_m4_firmware:*:*:*:*:*:*:*:* Versions before fhe132b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:nextscale_nx360_m4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3300_m4_firmware:*:*:*:*:*:*:*:* Versions before yae166b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:system_x3300_m4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3500_m4_firmware:*:*:*:*:*:*:*:* Versions before y5e170b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:system_x3500_m4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3530_m4_firmware:*:*:*:*:*:*:*:* Versions before bee174b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:system_x3530_m4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3550_m4_firmware:*:*:*:*:*:*:*:* Versions before d7e174b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:system_x3550_m4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3630_m4_firmware:*:*:*:*:*:*:*:* Versions before bee174b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:system_x3630_m4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3650_m4_firmware:*:*:*:*:*:*:*:* Versions before vve172b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:system_x3650_m4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3650_m4_bd_firmware:*:*:*:*:*:*:*:* Versions before vve172b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:system_x3650_m4_bd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3650_m4_hd_firmware:*:*:*:*:*:*:*:* Versions before vve172b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:system_x3650_m4_hd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3750_m4_firmware:*:*:*:*:*:*:*:* Versions before a5e130a Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:system_x3750_m4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:system_x3750_m4_firmware:*:*:*:*:*:*:*:* Versions before koe170b Vulnerable ·Lenovo
- cpe:2.3:o:lenovo:idataplex_dx360_m4_firmware:*:*:*:*:*:*:*:* Versions before tde168b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:idataplex_dx360_m4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Lenovo
- cpe:2.3:o:lenovo:idataplex_dx360_m4_water_cooled_firmware:*:*:*:*:*:*:*:* Versions before tde168b Vulnerable ·Lenovo
- cpe:2.3:h:lenovo:idataplex_dx360_m4_water_cooled:-:*:*:*:*:*:*:* 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-2020-8332
- 2026-10-03 Alias added: GHSA-5pp7-xmxh-rxh5
References
Sources
- CVE-2020-8332 · CVE Program
- CVE-2020-8332 · NVD
- FIRST EPSS
- GHSA-5pp7-xmxh-rxh5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences