Dell BIOS contains an improper input validation vulnerability
Published Sep 28, 2021
7.5
HIGHCVSS 3.1
EPSS 0.25%
Description
Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<1.3.1
- Version
Configuration 1
- < 1.3.1
Running on/with
- n/a
Configuration 2
- < 1.3.1
Running on/with
- n/a
Configuration 3
- < 1.7.1
Running on/with
- n/a
Configuration 4
- < 1.12.0
Running on/with
- n/a
Configuration 5
- < 1.7.1
Running on/with
- n/a
Configuration 6
- < 1.12.0
Running on/with
- n/a
Configuration 7
- < 1.1.0
Running on/with
- n/a
Configuration 8
- < 1.12.0
Running on/with
- n/a
Configuration 9
- < 1.12.0
Running on/with
- n/a
Configuration 10
- < 1.3.1
Running on/with
- n/a
Configuration 11
- < 1.3.1
Running on/with
- n/a
Configuration 12
- < 1.5.0
Running on/with
- n/a
Configuration 13
- < 1.12.0
Running on/with
- n/a
Configuration 14
- < 1.12.0
Running on/with
- n/a
Configuration 15
- < 1.12.0
Running on/with
- n/a
Configuration 16
- < 1.12.0
Running on/with
- n/a
Configuration 17
- < 1.12.0
Running on/with
- n/a
Configuration 18
- < 1.12.0
Running on/with
- n/a
Configuration 19
- < 1.9.1
Running on/with
- n/a
Configuration 20
- < 1.5.1
Running on/with
- n/a
Configuration 21
- < 1.5.0
Running on/with
- n/a
Configuration 22
- < 1.5.1
Running on/with
- n/a
Configuration 23
- < 1.8.0
Running on/with
- n/a
Configuration 24
- < 1.8.0
Running on/with
- n/a
Configuration 25
- < 1.8.3
Running on/with
- n/a
Configuration 26
- < 1.17.1
Running on/with
- n/a
Configuration 27
- < 1.12.1
Running on/with
- n/a
Configuration 28
- < 1.12.1
Running on/with
- n/a
Configuration 29
- < 1.4.2
Running on/with
- n/a
Configuration 30
- 1.4.2
Running on/with
- n/a
Configuration 31
- < 1.10.1
Running on/with
- n/a
Configuration 32
- < 1.11.1
Running on/with
- n/a
Configuration 33
- < 1.4.3
Running on/with
- n/a
Configuration 34
- < 1.4.3
Running on/with
- n/a
Configuration 35
- < 1.10.1
Running on/with
- n/a
Configuration 36
- < 1.4.3
Running on/with
- n/a
Configuration 37
- < 1.10.1
Running on/with
- n/a
Configuration 38
- < 1.5.1
Running on/with
- n/a
Configuration 39
- < 1.9.1
Running on/with
- n/a
Configuration 40
- < 1.11.1
Running on/with
- n/a
Configuration 41
- < 1.5.1
Running on/with
- n/a
Configuration 42
- < 1.11.1
Running on/with
- n/a
Configuration 43
- < 1.10.0
Running on/with
- n/a
Configuration 44
- < 1.5.1
Running on/with
- n/a
Configuration 45
- < 1.5.1
Running on/with
- n/a
Configuration 46
- < 1.4.2
Running on/with
- n/a
Configuration 47
- < 1.3.1
Running on/with
- n/a
Configuration 48
- < 1.3.1
Running on/with
- n/a
Configuration 49
- < 1.3.1
Running on/with
- n/a
Configuration 50
- < 1.4.0
Running on/with
- n/a
Configuration 51
- < 1.3.10
Running on/with
- n/a
Configuration 52
- < 1.6.2
Running on/with
- n/a
Configuration 53
- < 1.6.2
Running on/with
- n/a
Configuration 54
- < 1.3.10
Running on/with
- n/a
Configuration 55
- < 1.10.1
Running on/with
- n/a
Configuration 56
- < 1.11.1
Running on/with
- n/a
Configuration 57
- < 1.4.3
Running on/with
- n/a
Configuration 58
- < 1.4.3
Running on/with
- n/a
Configuration 59
- < 1.4.3
Running on/with
- n/a
Configuration 60
- < 1.9.1
Running on/with
- n/a
Configuration 61
- < 1.6.1
Running on/with
- n/a
Configuration 62
- < 1.6.3
Running on/with
- n/a
Configuration 63
- < 1.11.2
Running on/with
- n/a
Configuration 64
- < 1.6.2
Running on/with
- n/a
Configuration 65
- < 1.11.2
Running on/with
- n/a
Configuration 66
- < 1.6.2
Running on/with
- n/a
Configuration 67
- < 1.1.0
Running on/with
- n/a
Configuration 68
- < 1.12.0
Running on/with
- n/a
Configuration 69
- < 1.1.0
Running on/with
- n/a
Configuration 70
- < 1.12.0
Running on/with
- n/a
Configuration 71
- < 1.3.1
Running on/with
- n/a
Configuration 72
- < 1.3.1
Running on/with
- n/a
Configuration 73
- < 1.3.1
Running on/with
- n/a
Configuration 74
- < 1.12.0
Running on/with
- n/a
Configuration 75
- < 1.12.0
Running on/with
- n/a
Configuration 76
- < 1.5.1
Running on/with
- n/a
Configuration 77
- < 1.8.0
Running on/with
- n/a
Configuration 78
- < 1.6.0
Configuration 79
- < 1.4.1
Running on/with
- n/a
Configuration 80
- < 1.12.0
Running on/with
- n/a
Configuration 81
- < 1.6.3
Running on/with
- n/a
Configuration 82
- < 1.7.0
Configuration 83
- < 1.9.1
Configuration 84
- < 1.7.1
Running on/with
- n/a
Configuration 85
- < 1.6.1
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:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/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 v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.25% (0.00249) | 14.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.24% (0.00241) | 15.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00037) | 8.06th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.04% (0.01036) | 43.31th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.04% (0.01036) | 39.16th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.76% (0.02763) | 63.78th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.72% (0.01723) | 34.94th | v1 |
| Jan 6, 2022 | 1.72% (0.01723) | 34.25th | v1 |
| Oct 11, 2021 | 0.39% (0.00389) | 7.99th | v1 |
| Oct 5, 2021 | 1.72% (0.01723) | 73.52th | v1 |
| Oct 4, 2021 | 0.39% (0.00389) | 7.94th | v5 (v2026.06.15) |
| Sep 29, 2021 | 0.39% (0.00389) | 7.96th | v1 |
References (1)
- https://www.dell.com/support/kbdoc/000191495/ x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.dell.com/support/kbdoc/000191495/ | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.