HP PC BIOS toctou

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in HP PC BIOS. This impacts an unknown function. This manipulation causes toctou. This vulnerability is handled as CVE-2022-27540. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in HP PC BIOS (affected version not known). It has been declared as critical. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a toctou vulnerability. The CWE definition for the vulnerability is CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. As an impact it is known to affect availability. The summary by CVE is:

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

It is possible to read the advisory at support.hp.com. This vulnerability is known as CVE-2022-27540 since 03/21/2022. The exploitation appears to be difficult. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Toctou
CWE: CWE-367 / CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/21/2022 🔍
06/28/2024 +829 days 🔍
06/28/2024 +0 days 🔍
05/04/2026 +675 days 🔍

Sourcesinfo

Vendor: hp.com

Advisory: support.hp.com
Status: Confirmed

CVE: CVE-2022-27540 (🔍)
GCVE (CVE): GCVE-0-2022-27540
GCVE (VulDB): GCVE-100-269971

Entryinfo

Created: 06/28/2024 22:13
Updated: 05/04/2026 22:47
Changes: 06/28/2024 22:13 (50), 07/01/2024 19:34 (1), 08/22/2024 18:29 (12), 05/04/2026 22:43 (1), 05/04/2026 22:47 (4)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

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