High severity · published Feb 1, 2023
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…
7.0
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
Dragonfly Folio G3 2-in-1 Firmware · HP
before 01.03.01 · source: NVD
ED
Elite Dragonfly Firmware · HP
before 01.22.00 · source: NVD
ED
Elite Dragonfly G2 Firmware · HP
before 01.11.00 · source: NVD
ED
Elite Dragonfly G3 Firmware · HP
before 01.04.00 · source: NVD
ED
Elite Dragonfly Max Firmware · HP
before 01.11.00 · source: NVD
EX
Elite X2 1013 G3 Firmware · HP
before 01.22.00 · source: NVD
EX
Elite X2 G4 Firmware · HP
before 01.22.00 · source: NVD
EX
Elite X2 G8 Tablet Firmware · HP
before 01.11.00 · source: NVD
EX
Elite X360 1040 G9 2-in-1 Firmware · HP
before 01.04.02 · source: NVD
E1
Elitebook 1040 G9 Firmware · HP
before 01.04.02 · source: NVD
E1
Elitebook 1050 G1 Firmware · HP
before 01.22.00 · source: NVD
E6
Elitebook 630 G9 Firmware · HP
before 01.05.00 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-27538
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-27538
Patch
https://support.hp.com/us-en/document/ish_7387020-7387107-16/hpsbhf03827
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