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CVE-2021-3808

25
FAUCET Score

CVE-2021-3808 describes potential arbitrary code execution vulnerabilities within the BIOS (UEFI Firmware) of numerous HP PC products. With a CVSS score of 7.8 (High), this vulnerability allows a local attacker with low privileges to achieve high impact on confidentiality, integrity, and availability. While HP has released firmware updates to address these issues, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB) and it is not listed on the KEV catalog. Despite this, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity landscape.

Impacted Technologies

VendorProductVersion(s)CPE
01.12.00CPE matchmatch criteria
cpe:2.3:o:hp:elite_dragonfly_firmware:01.12.00:*:*:*:*:*:*:*
1.41CPE matchmatch criteria
cpe:2.3:o:hp:elite_x2_1012_g2_firmware:1.41:*:*:*:*:*:*:*
01.19.00CPE matchmatch criteria
cpe:2.3:o:hp:elite_x2_1013_g3_firmware:01.19.00:*:*:*:*:*:*:*
01.12.00CPE matchmatch criteria
cpe:2.3:o:hp:elite_x2_g4_firmware:01.12.00:*:*:*:*:*:*:*
1.41CPE matchmatch criteria
cpe:2.3:o:hp:elitebook_1040_g4_firmware:1.41:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 49th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.hp.com / us-en/document/ish_6184733-6184761-16/hpsbhf03788
Vendor Advisory