01 Record
CVE-2021-39301
Potential vulnerabilities have been identified in UEFI firmware (BIOS) for some PC products which may allow escalation of privilege and arbitrary code execution.
HighPUBLISHEDCNA: hp
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
02 Description
Potential vulnerabilities have been identified in UEFI firmware (BIOS) for some PC products which may allow escalation of privilege and arbitrary code execution.
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.38% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 32.2% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-07.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2022-02-16 16:38Z4 YR AGO
- Last updated
- 2026-10-07 18:06Z22 DAYS AGO
- Reserved
- 2021-08-19
- Assigning CNA
- hp
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-269Improper Privilege ManagementClass
- Data version
- 5.2
- Document digest
- 954d80ae05b11e4587046505c05731c2000d8f53c92700c7d18a8ace413061a0
05 Affected products
VendorProductVersionsPlatforms
n/aBUSINESS NOTEBOOK PCS BIOS; BUSINESS DESKTOP PCS BIOS; RETAIL POINT-OF-SALE SYSTEMS BIOS; WORKSTATIONS BIOSbefore 01.12.00, before 01.08.00, before 01.19.00, before 01.08.02, before 01.08.01, before 02.17.00, before 02.18.00, before 02.12.00, before 02.10.00, before 02.07.00, before 02.03.00, before 02.75, before 2.58—