SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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.

HIGH 8.8EPSS 0.42%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Potential vulnerabilities have been identified in UEFI firmware (BIOS) for some PC products which may allow escalation of privilege and arbitrary code execution.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS
0.42% probability · 36th percentile
CISA KEV
Not listed
Affected
hp/elite dragonfly firmware · hp/elite dragonfly g2 firmware · hp/elite dragonfly max firmware · hp/elite x2 1013 g3 firmware · hp/elite x2 g4 firmware · hp/elite x2 g8 tablet firmware · hp/elitebook 1050 g1 firmware · hp/elitebook 830 g5 firmware · hp/elitebook 830 g6 firmware · hp/elitebook 830 g7 firmware · hp/elitebook 830 g8 firmware · hp/elitebook 836 g5 firmware · hp/elitebook 836 g6 firmware · hp/elitebook 840 aero g8 firmware · hp/elitebook 840 g5 firmware · hp/elitebook 840 g5 healthcare edition firmware · hp/elitebook 840 g6 firmware · hp/elitebook 840 g6 healthcare edition firmware · hp/elitebook 840 g7 firmware · hp/elitebook 840 g8 firmware · +40 more
Source
hp-security-alert@hp.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.