Host Boot ROM Code Vulnerability in Systems Implementing UFS Boot Feature
Published Jan 23, 2023
8.7
HIGHCVSS 3.1
EPSS 0.81%
Description
Western Digital has identified a weakness in the UFS standard that could result in a security vulnerability. This vulnerability may exist in some systems where the Host boot ROM code implements the UFS Boot feature to boot from UFS compliant storage devices. The UFS Boot feature, as specified in the UFS standard, is provided by UFS devices to support platforms that need to download the system boot loader from external non-volatile storage locations. Several scenarios have been identified in which adversaries may disable the boot capability, or revert to an old boot loader code, if the host boot ROM code is improperly implemented. UFS Host Boot ROM implementers may be impacted by this vulnerability. UFS devices are only impacted when connected to a vulnerable UFS Host and are not independently impacted by this vulnerability. When present, the vulnerability is in the UFS Host implementation and is not a vulnerability in Western Digital UFS Devices. Western Digital has provided details of the vulnerability to the JEDEC standards body, multiple vendors of host processors, and software solutions providers.
Affected products
No data.
- n/a
Running on/with
- n/a
- n/a
- 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:L/PR:H/UI:N/S:C/C:N/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Apr 1, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2023–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.81% (0.00815) | 55.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.81% (0.00815) | 52.12th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.11% (0.00110) | 27.01th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00074) | 33.97th | v3 (v2023.03.01) |
| Jul 13, 2024 | 0.07% (0.00069) | 30.58th | v3 (v2023.03.01) |
| Jan 30, 2024 | 0.07% (0.00069) | 28.55th | v3 (v2023.03.01) |
| Dec 24, 2023 | 0.05% (0.00050) | 17.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00045) | 12.38th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Jan 24, 2023 | 0.89% (0.00885) | 27.40th | v2 (v2022.01.01) |
References (2)
- https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/collateral/white-paper/white-paper-host-boot-rom-code-vulnerability-and-mitigation.pdf ExploitTechnical DescriptionVendor Advisory
- https://www.westerndigital.com/support/product-security/wdc-23001-host-boot-rom-code-vulnerability-in-systems-implementing-ufs-boot-feature Vendor Advisory
Change history (0)
No recorded changes yet.