CVE-2022-27538 — 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

Back Back to CVE browser

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

Published Jan 30, 2023

7.0

HIGH

CVSS 3.1

EPSS 0.14%

Description

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.

Affected products

Vendor HP Inc. Product HP PC Bios Default
n/a
- Version
  See HP Security Bulletin reference for affected versions.
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

HP Inc.

HP PC Bios

n/a

Version	Status	Constraints
See HP Security Bulletin reference for affected versions.	affected	-

Remediation

No remediation recorded yet.

Metrics

0.14% 0.00138

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00138

Score over time

2023–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (8 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.14% (0.00138)	2.68th	v5 (v2026.06.15)
Jun 15, 2026	0.14% (0.00138)	3.52th	v5 (v2026.06.15)
Mar 17, 2025	0.10% (0.00099)	25.30th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00044)	14.58th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	5.63th	v3 (v2023.03.01)
Mar 6, 2023	1.23% (0.01234)	67.30th	v2 (v2022.01.01)
Feb 17, 2023	1.23% (0.01234)	66.90th	v2 (v2022.01.01)
Jan 31, 2023	2.56% (0.02559)	81.42th	v2 (v2022.01.01)

Weaknesses (1)

CWE-367

References (1)

https://support.hp.com/us-en/document/ish_7387020-7387107-16/hpsbhf03827
PatchVendor Advisory

Link	Providers	Tags
https://support.hp.com/us-en/document/ish_7387020-7387107-16/hpsbhf03827		PatchVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner hp

Published Jan 30, 2023

Updated Mar 27, 2025

Reserved Mar 21, 2022

Link CVE-2022-27538

CISA Vulnrichment

Updated Mar 27, 2025

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2022-27538

Red Hat

Severity n/a

Public date n/a

Links CVE-2022-27538