CVE-2022-27538

A potential Time-of-Check to Time-of-Use (TOCTOU) vulnerability has been identified in the BIOS...

7.0 High

A potential Time-of-Check to Time-of-Use (TOCTOU) vulnerability has been identified in the BIOS for certain HP PC products which may allow arbitrary code execution, denial of service, and information disclosure. HP is releasing BIOS updates to mitigate the potential vulnerability.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: High
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.14%Down 2.4 points since Jan 31, 2023

What each source reports

NVD Score used 7.0

Record: CVE-2022-27538
CVSS 3.1: 7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-367
Updated: 2026-11-02

CVE List 7.0

Record: CVE-2022-27538
CVSS 3.1: 7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-367
Updated: 2026-11-02

EUVDEUVD-2022-32039 7.0

Record: EUVD-2022-32039
CVSS 3.1: 7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-vrcv-rg57-32pr 7.0

A potential Time-of-Check to Time-of-Use (TOCTOU) vulnerability has been identified in the BIOS...

Record: GHSA-vrcv-rg57-32pr
CVSS 3.1: 7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-367
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-27538 is a high vulnerability (CVSS 7.0) in Hp Dragonfly Folio G3 2-in-1 Firmware, published January 30, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.