HP BIOS toctou

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in HP BIOS. This issue affects some unknown processing. This manipulation causes toctou. This vulnerability appears as CVE-2022-27538. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in HP BIOS (version now known) and classified as critical. Affected by this vulnerability is some unknown processing. 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 confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was presented 02/01/2023. It is possible to read the advisory at support.hp.com. This vulnerability is known as CVE-2022-27538 since 03/21/2022. 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

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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 🔍
02/01/2023 +317 days 🔍
02/01/2023 +0 days 🔍
03/28/2025 +785 days 🔍

Sourcesinfo

Vendor: hp.com

Advisory: support.hp.com
Status: Confirmed

CVE: CVE-2022-27538 (🔍)
GCVE (CVE): GCVE-0-2022-27538
GCVE (VulDB): GCVE-100-219883

Entryinfo

Created: 02/01/2023 10:02
Updated: 03/28/2025 00:09
Changes: 02/01/2023 10:02 (37), 03/28/2025 00:09 (26)
Complete: 🔍
Cache ID: 216::103

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