What’s Vulnerable › Vulnerabilities

CVE-2022-27538

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-02-01 · updated 2026-06-17
• Weakness: CWE-367

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.

Affected products

• HP Dragonfly Folio G3 2-In-1 Firmware: before 01.03.01 — fixed in 01.03.01
• HP Elite Dragonfly Firmware: before 01.22.00 — fixed in 01.22.00
• HP Elite Dragonfly G2 Firmware: before 01.11.00 — fixed in 01.11.00
• HP Elite Dragonfly G3 Firmware: before 01.04.00 — fixed in 01.04.00
• HP Elite Dragonfly Max Firmware: before 01.11.00 — fixed in 01.11.00
• HP Elite Mini 600 G9 Firmware: before 02.06.00 — fixed in 02.06.00
• HP Elite Mini 800 G9 Firmware: before 02.06.00 — fixed in 02.06.00
• HP Elite Sff 600 G9 Firmware: before 02.06.00 — fixed in 02.06.00
• HP Elite Sff 800 G9 Firmware: before 02.06.00 — fixed in 02.06.00
• HP Elite Slice Firmware: before 02.59 — fixed in 02.59
• HP Elite Slice G2 Firmware: before 02.59 — fixed in 02.59
• HP Elite Tower 600 G9 Firmware: before 02.06.00 — fixed in 02.06.00
• HP Elite Tower 680 G9 Firmware: before 02.06.00 — fixed in 02.06.00
• HP Elite Tower 800 G9 Firmware: before 02.06.00 — fixed in 02.06.00
• HP Elite Tower 880 G9 Firmware: before 02.06.00 — fixed in 02.06.00
• HP Elite X2 1013 G3 Firmware: before 01.22.00 — fixed in 01.22.00
• HP Elite X2 G4 Firmware: before 01.22.00 — fixed in 01.22.00
• HP Elite X2 G8 Tablet Firmware: before 01.11.00 — fixed in 01.11.00
• HP Elite X360 1040 G9 2-In-1 Firmware: before 01.04.02 — fixed in 01.04.02
• HP Elitebook 1040 G9 Firmware: before 01.04.02 — fixed in 01.04.02
• HP Elitebook 1050 G1 Firmware: before 01.22.00 — fixed in 01.22.00
• HP Elitebook 630 G9 Firmware: before 01.05.00 — fixed in 01.05.00
• HP Elitebook 640 G9 Firmware: before 01.05.00 — fixed in 01.05.00
• HP Elitebook 645 G9 Firmware: before 01.09.00 — fixed in 01.09.00
• HP Elitebook 650 G9 Firmware: before 01.05.00 — fixed in 01.05.00
• HP Elitebook 655 G9 Firmware: before 01.09.00 — fixed in 01.09.00
• HP Elitebook 735 G5 Firmware: before 01.22.00 — fixed in 01.22.00
• HP Elitebook 735 G6 Firmware: before 01.22.00 — fixed in 01.22.00
• HP Elitebook 745 G5 Firmware: before 01.22.00 — fixed in 01.22.00
• HP Elitebook 745 G6 Firmware: before 01.22.00 — fixed in 01.22.00

How to fix

Upgrade to a fixed version: HP Dragonfly Folio G3 2-In-1 Firmware 01.03.01; HP Elite Dragonfly Firmware 01.22.00; HP Elite Dragonfly G2 Firmware 01.11.00; HP Elite Dragonfly G3 Firmware 01.04.00; HP Elite Dragonfly Max Firmware 01.11.00; HP Elite Mini 600 G9 Firmware 02.06.00; HP Elite Mini 800 G9 Firmware 02.06.00; HP Elite Sff 600 G9 Firmware 02.06.00; HP Elite Sff 800 G9 Firmware 02.06.00; HP Elite Slice Firmware 02.59; HP Elite Slice G2 Firmware 02.59; HP Elite Tower 600 G9 Firmware 02.06.00. Check the vendor advisory for mitigations.

References

• https://support.hp.com/us-en/document/ish_7387020-7387107-16/hpsbhf03827
• https://support.hp.com/us-en/document/ish_7387020-7387107-16/hpsbhf03827

Get alerted when CVE-2022-27538 or the next vulnerability affects your stack