BIOS Write Protection Race Condition
Published Oct 2, 2018
5.9
MEDIUMCVSS 3.1
EPSS 0.53%
Description
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.
Affected products
-
- Version variousStatusaffectedConstraints<various
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Lenovo Group LTD | IdeaPad | n/a |
|
Configuration 1
- < 1.15
Running on/with
- n/a
Configuration 2
- < 6jcn24ww
Running on/with
- n/a
Configuration 3
- < 6jcn24ww
Running on/with
- n/a
Configuration 4
- < 6jcn24ww
Running on/with
- n/a
Configuration 5
- < 2.09
Running on/with
- n/a
Configuration 6
- < 2.09
Running on/with
- n/a
Configuration 7
- < 2.09
Running on/with
- n/a
Configuration 8
- < 2wcn38ww
Running on/with
- n/a
Configuration 9
- < 1.15
Running on/with
- n/a
Configuration 10
- < 6jcn26ww
Running on/with
- n/a
Configuration 11
- < 2.09
Running on/with
- n/a
Configuration 12
- < 2.55
Running on/with
- n/a
Configuration 13
- < 2.55
Running on/with
- n/a
Configuration 14
- < 2.55
Running on/with
- n/a
Configuration 15
- < 2.55
Running on/with
- n/a
Configuration 16
- < 5scn38ww
Running on/with
- n/a
Configuration 17
- n/a
Running on/with
- n/a
Configuration 18
- < 2wcn38ww
Configuration 19
- < 2wcn38ww
Configuration 20
- < 1.15
Running on/with
- n/a
Configuration 21
- < 2.09
Running on/with
- n/a
Configuration 22
- < 2.09
Running on/with
- n/a
Configuration 23
- n/a
Running on/with
- n/a
Configuration 24
Running on/with
- n/a
Configuration 25
Running on/with
- n/a
Configuration 26
- n/a
Running on/with
- n/a
Configuration 27
Running on/with
- n/a
Configuration 28
- n/a
Running on/with
- n/a
Configuration 29
- n/a
Running on/with
- n/a
Configuration 30
- n/a
Running on/with
- n/a
Configuration 31
- < 6jcn26ww
Running on/with
- n/a
Configuration 32
- < 6jcn26ww
Running on/with
- n/a
Configuration 33
- < 6jcn26ww
Running on/with
- n/a
Configuration 34
- n/a
Running on/with
- n/a
Configuration 35
- n/a
Running on/with
- n/a
Configuration 36
- n/a
Running on/with
- n/a
Configuration 37
- < 5jcn25ww
Running on/with
- n/a
Configuration 38
- < 5jcn25ww
Running on/with
- n/a
Configuration 39
- < 6jcn26ww
Running on/with
- n/a
Configuration 40
- < 6jcn26ww
Running on/with
- n/a
Configuration 41
- < 3scn66ww
Running on/with
- n/a
Configuration 42
- n/a
Running on/with
- n/a
Configuration 43
- < 5xcn24ww
Running on/with
- n/a
Configuration 44
- < 5xcn24ww
Running on/with
- n/a
Configuration 45
- < 5xcn24ww
Running on/with
- n/a
Configuration 46
- < 2wcn38ww
Running on/with
- n/a
Configuration 47
- < 4.07
Running on/with
- n/a
Configuration 48
- < 2wcn38ww
Running on/with
- n/a
Configuration 49
- < 0zcn47ww
Running on/with
- n/a
Configuration 50
- < 4.07
Running on/with
- n/a
Configuration 51
- < 4.07
Running on/with
- n/a
Configuration 52
- < 2wcn38ww
Running on/with
- n/a
Configuration 53
- < 2wcn38ww
Running on/with
- n/a
Configuration 54
- < 6.7
Running on/with
- n/a
Configuration 55
- < 1.15
Running on/with
- n/a
Configuration 56
- < 2.05
Running on/with
- n/a
Configuration 57
- < 2.07
Running on/with
- n/a
Configuration 58
- < 2.05
Running on/with
- n/a
Configuration 59
- < 2.12
Running on/with
- n/a
Configuration 60
- < 2.09
Configuration 61
- < 2.09
Running on/with
- n/a
Configuration 62
- < 5jcn25ww
Running on/with
- n/a
Configuration 63
- < 5jcn25ww
Running on/with
- n/a
Configuration 64
- < 4gcn38ww
Running on/with
- n/a
Configuration 65
- < 4gcn38ww
Running on/with
- n/a
Configuration 66
- < 4gcn38ww
Running on/with
- n/a
Configuration 67
- < 4gcn38ww
Running on/with
- n/a
Configuration 68
- < 4.07
Running on/with
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/C:N/I:P/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.53% (0.00532) | 42.87th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00532) | 40.49th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.17% (0.00169) | 35.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00080) | 36.28th | v3 (v2023.03.01) |
| Jun 28, 2024 | 0.08% (0.00080) | 34.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00080) | 32.69th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.06% (0.02063) | 50.26th | v1 |
| Jan 6, 2022 | 2.06% (0.02063) | 49.75th | v1 |
| Sep 1, 2021 | 2.06% (0.02063) | 76.98th | v1 |
| Apr 14, 2021 | 2.06% (0.02063) | 0.00th | v1 |
References (1)
- https://support.lenovo.com/us/en/solutions/LEN-20184 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://support.lenovo.com/us/en/solutions/LEN-20184 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.