CVE-2022-31637

Code execution via undisclosed firmware TOCTOU race

Published Jun 13, 2023 · Updated Jan 3, 2025

A TOCTOU race condition in HP PC BIOS allows physically proximate attackers to execute code, elevate privileges, interrupt service, or disclose data. HP has not disclosed the affected firmware locus or the check and later use whose intervening state change creates the race. Physical access is required; successful exploitation can cross the firmware trust boundary and compromise confidentiality, integrity, or system availability.

CVSS severity7.8
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A TOCTOU race condition in HP PC BIOS allows physically proximate attackers to execute code, elevate privileges, interrupt service, or disclose data. HP has not disclosed the affected firmware locus or the check and later use whose intervening state change creates the race. Physical access is required; successful exploitation can cross the firmware trust boundary and compromise confidentiality, integrity, or system availability.

The record

CVE
CVE-2022-31637
Published
Jun 13, 2023
Updated
Jan 3, 2025
Vendor
Plantronics
Product
HP PC BIOS
Classifications
CWE-367
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=See HP Security Bulletin reference for affected versions.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Plantronics · HP PC BIOSversion=See HP Security Bulletin reference for affected versions.

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
7.8HP Inc.CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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