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CVE-2022-27540

21
FAUCET Score

CVE-2022-27540 is a Time-of-Check to Time-of-Use (TOCTOU) vulnerability found in the HP BIOS of certain HP PC products. This high-severity flaw (CVSS 7.8) allows for arbitrary code execution, denial of service, and information disclosure, requiring local access and high attack complexity. While HP is releasing BIOS updates to mitigate the issue, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6CPE matchmatch criteria
cpe:2.3:o:hp:probook_446_g3_firmware:*:*:*:*:*:*:*:*
< 01.07.00CPE matchmatch criteria
cpe:2.3:o:hp:probook_450_15.6_inch_g9_notebook_pc_firmware:*:*:*:*:*:*:*:*
< 1.6CPE matchmatch criteria
cpe:2.3:o:hp:probook_450_g3_firmware:*:*:*:*:*:*:*:*
< 01.28.00CPE matchmatch criteria
cpe:2.3:o:hp:probook_450_g6_firmware:*:*:*:*:*:*:*:*
< 01.18.00CPE matchmatch criteria
cpe:2.3:o:hp:probook_450_g7_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.1
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.12%
Probability of exploitation in next 30 days
EPSS Percentile
2.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0012 is in the 11th percentile among its peer group of 1,523 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

9001patch availablevia llm_extracted
View patch
gatsbyjspatch availablevia llm_extracted
View patch
joinmastodonpatch availablevia llm_extracted
View patch
mariadbpatch availablevia llm_extracted
View patch

Vendor Advisories (4)

gatsbyjsllm-gatsbyjs-4978fa3c61ea9245HIGH

HP PC BIOS Additional Security Update for TOCTOU

Jun 25, 2024
9001llm-9001-4b179419574ba0b1HIGH

HP PC BIOS Additional Security Update for TOCTOU

Jun 25, 2024
joinmastodonllm-joinmastodon-7566dc9764b08c11HIGH

HP PC BIOS Additional Security Update for TOCTOU

Jun 25, 2024
mariadbllm-mariadb-a8072723bc282bbdHIGH

HP PC BIOS Additional Security Update for TOCTOU

Jun 25, 2024

References

support.hp.com / us-en/document/ish_10810714-10810745-16/hpsbhf03948
Vendor Advisory