HP BIOS UEFI Firmware Update privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in HP BIOS. Impacted is an unknown function of the component UEFI Firmware Update Handler. Such manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2021-3808. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in HP BIOS (version unknown) and classified as critical. Affected by this issue is an unknown function of the component UEFI Firmware Update Handler. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Potential security vulnerabilities have been identified in the BIOS (UEFI Firmware) for certain HP PC products, which might allow arbitrary code execution. HP is releasing firmware updates to mitigate these potential vulnerabilities.

The weakness was shared 02/01/2023. The advisory is shared for download at support.hp.com. This vulnerability is handled as CVE-2021-3808 since 09/16/2021. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
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

09/16/2021 🔍
02/01/2023 +503 days 🔍
02/01/2023 +0 days 🔍
03/01/2023 +28 days 🔍

Sourcesinfo

Vendor: hp.com

Advisory: support.hp.com
Status: Confirmed

CVE: CVE-2021-3808 (🔍)
GCVE (CVE): GCVE-0-2021-3808
GCVE (VulDB): GCVE-100-219884

Entryinfo

Created: 02/01/2023 10:13
Updated: 03/01/2023 08:29
Changes: 02/01/2023 10:13 (36), 03/01/2023 08:29 (11)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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