Integer overflow in the Drive Execution Environment (DXE) phase in the Capsule Update feature in the UEFI implementation in EDK2 allows physically proximate attackers to bypass intended access restrictions via crafted data
Published Jan 31, 2020
6.8
MEDIUMCVSS 3.1
EPSS 0.59%
Description
Integer overflow in the Drive Execution Environment (DXE) phase in the Capsule Update feature in the UEFI implementation in EDK2 allows physically proximate attackers to bypass intended access restrictions via crafted data.
Affected products
-
- Version unknownStatusaffectedConstraints-
- Version
-
- Version before 5/23/2014StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| American Megatrends Incorporated (AMI) | BIOS | n/a |
| ||||||
| Phoenix Technologies Ltd. | SCT3 | 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:P/AC:L/PR:N/UI:N/S:U/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.59% (0.00587) | 46.10th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.59% (0.00587) | 43.26th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00053) | 13.89th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00077) | 35.04th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.08% (0.00077) | 33.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00077) | 31.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.04% (0.01036) | 43.31th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.04% (0.01036) | 43.21th | v2 (v2022.01.01) |
| Aug 30, 2022 | 1.04% (0.01036) | 41.17th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.04% (0.01036) | 39.16th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.04% (0.01036) | 20.62th | v2 (v2022.01.01) |
References (1)
- http://www.kb.cert.org/vuls/id/552286 x_refsource_MISCThird Party AdvisoryUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| http://www.kb.cert.org/vuls/id/552286 | x_refsource_MISCThird Party AdvisoryUS Government Resource |
Change history (0)
No recorded changes yet.