BIOS Write Protection Race Condition
In some Lenovo IdeaPad consumer notebook models, a race condition in the BIOS flash device locking mechanism is not adequately protected against, potentially allowing an attacker with administrator access to alter the contents of BIOS.
- Published
- Oct 2, 2018
- Updated
- Jun 16, 2026
- EPSS
- 0.5% · 43th percentile
- CWE
- CWE-362
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Report tools
Action score
23
Monitor
Low priority for now.
- CVSS
- 23 / 40 · 5.9 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.5%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| lenovo | e42-80 firmware | cpe:2.3:o:lenovo:e42-80_firmware |
| lenovo | e52-80 firmware | cpe:2.3:o:lenovo:e52-80_firmware |
| lenovo | v310-14ikb firmware | cpe:2.3:o:lenovo:v310-14ikb_firmware |
| lenovo | v310-14isk firmware | cpe:2.3:o:lenovo:v310-14isk_firmware |
| lenovo | v310-15ikb firmware | cpe:2.3:o:lenovo:v310-15ikb_firmware |
| lenovo | v310-15isk firmware | cpe:2.3:o:lenovo:v310-15isk_firmware |
| lenovo | v510-14ikb firmware | cpe:2.3:o:lenovo:v510-14ikb_firmware |
| lenovo | v510-15ikb firmware | cpe:2.3:o:lenovo:v510-15ikb_firmware |
| hp | 310s-14isk firmware | cpe:2.3:o:hp:310s-14isk_firmware |
| hp | 310s-14isk | cpe:2.3:h:hp:310s-14isk |
| hp | 320-15ikbra firmware | cpe:2.3:o:hp:320-15ikbra_firmware |
| hp | 320-15ikbra | cpe:2.3:h:hp:320-15ikbra |
and 121 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- hp 310s-14isk firmwarebefore 1.15
- hp 320-15ikbra firmwarebefore 6jcn24ww
- hp 320-15ikbrn firmwarebefore 6jcn24ww
- hp 320-15ikbrn touch firmwarebefore 6jcn24ww
- hp 320-17ikbrnbefore 2.09
- hp 320s-14ikbbefore 2.09
- hp 320s-15ikb firmwarebefore 2.09
- hp 320s-15isk firmwarebefore 2wcn38ww
- hp 510s-14isk firmwarebefore 1.15
- hp 520-15ikbrn firmwarebefore 6jcn26ww
- hp 520s-14ikb firmwarebefore 2.09
- hp 7000 u42 firmwarebefore 2.09
- hp 7000-15 u42 firmwarebefore 2.09
- hp 710s plus touch-13ikb firmwarebefore 2.55
- hp 710s plus-13ikb 16g firmwarebefore 2.55
- hp 710s plus-3ikb firmwarebefore 2.55
- hp 720s-13ikb firmwarebefore 5scn38ww
- hp b320-14ikb firmwareall versions
- hp e43-80 kbl firmwarebefore 4.07
- hp flex 4-1470 firmwarebefore 1.15
Versions reported by the vendor
Affected version ranges reported by the assigning authority (lenovo). Independent of NVD's CPE analysis and usually ahead of it.
Lenovo Group LTD IdeaPad
- various and later · before variousaffected
Same product
lenovo: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-9062BIOS Modules Unprotected by Intel Boot Guard Vulnerable to Physical Attack27Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- Administrator privileges are required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- none
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.