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Fencer Intel
high 7.0

CVE-2022-27538 json

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…

published 3y ago modified 4mo ago also EUVD-2022-32039

cvss
7.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

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.

Patch / fix

  • hp dragonfly_folio_g3_2-in-1_firmware 01.03.01
  • hp elite_dragonfly_firmware 01.22.00
  • hp elite_dragonfly_g3_firmware 01.04.00
  • hp elite_dragonfly_g2_firmware 01.11.00
  • hp elite_dragonfly_max_firmware 01.11.00
  • hp elite_x2_1013_g3_firmware 01.22.00
  • hp elite_x2_g4_firmware 01.22.00
  • hp elite_x2_g8_tablet_firmware 01.11.00
  • hp elite_x360_1040_g9_2-in-1_firmware 01.04.02
  • hp elitebook_1040_g9_firmware 01.04.02
  • hp elitebook_1050_g1_firmware 01.22.00
  • hp elitebook_630_g9_firmware 01.05.00
  • hp elitebook_640_g9_firmware 01.05.00
  • hp elitebook_645_g9_firmware 01.09.00
  • hp elitebook_650_g9_firmware 01.05.00
  • hp elitebook_655_g9_firmware 01.09.00
  • hp elitebook_735_g5_firmware 01.22.00
  • hp elitebook_735_g6_firmware 01.22.00
  • hp elitebook_745_g5_firmware 01.22.00
  • hp elitebook_745_g6_firmware 01.22.00

Is CVE-2022-27538 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • HP Inc. HP PC BIOS

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.