synced 3 MIN AGO
01 Record

CVE-2021-39299

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.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.36% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 30.5% 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 18:09Z21 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
d7aaa972078ceb43cf4bd63309482dc31be1d696ca722cfaa650d75cf64afe60

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—

06 References