Privilege escalation in HP Elitebook 1040 G4
CVE-2021-3809
Potential security vulnerabilities have been identified in the BIOS (UEFI Firmware) for certain HP PC products, which might allow arbitrary code execution. HP is releasing firmware updates to mitigate these potential vulnerabilities.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (15.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- HP Elitebook 1040 G4
- HP Elitebook 1040 G4 Firmware — versions 1.41
- HP Elitebook 1050 G1
- HP Elitebook 1050 G1 Firmware — versions 01.19.00
- HP Elitebook 725 G4
- HP Elitebook 725 G4 Firmware — versions 1.4
- HP Elitebook 735 G5
- HP Elitebook 735 G5 Firmware — versions 01.20.00
- HP Elitebook 735 G6
- HP Elitebook 735 G6 Firmware — versions 01.19.00
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.hp.com/us-en/document/ish_6184733-6184761-16/hpsbhf03788 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-3809?
- CVE-2021-3809 is a high-severity vulnerability in HP Elitebook 1040 G4, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2023-02-01.
- How severe is CVE-2021-3809?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-3809 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.