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Fencer Intel
high 7.8

CVE-2022-27540 json

A potential Time-of-Check to Time-of Use (TOCTOU) vulnerability has been identified in the HP BIOS for certain HP PC products, which might…

published 2y ago modified 4mo ago also EUVD-2022-32041

cvss
7.8
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 1%
public exploits
0
none known

Summary

A potential Time-of-Check to Time-of Use (TOCTOU) vulnerability has been identified in the HP BIOS for certain HP PC products, which might allow arbitrary code execution, denial of service, and information disclosure. HP is releasing BIOS updates to mitigate the potential vulnerability.

Patch / fix

  • hp elitebook_745_g4_firmware 1.45
  • hp elitebook_745_g5_firmware 01.26.01
  • hp elitebook_745_g6_firmware 01.26.00
  • hp elitebook_755_g4_firmware 1.45
  • hp elitebook_755_g5_firmware 01.26.01
  • hp elitebook_820_g3_firmware 1.6
  • hp elitebook_820_g4_firmware 1.48
  • hp elitebook_828_g3_firmware 1.6
  • hp elitebook_828_g4_firmware 1.48
  • hp elitebook_830_13.3_inch_g9_notebook_pc_firmware 01.07.00
  • hp elitebook_830_g5_firmware 01.28.00
  • hp elitebook_830_g6_firmware 01.26.00
  • hp elitebook_830_g7_firmware 01.14.00
  • hp elitebook_830_g8_firmware 01.15.02
  • hp elitebook_835_13_inch_g9_notebook_pc_firmware 01.05.01
  • hp elitebook_735_g6_firmware 01.26.00
  • hp elitebook_735_g5_firmware 01.26.01
  • hp elitebook_725_g4_firmware 1.45
  • hp elitebook_650_15.6_inch_g9_notebook_pc_firmware 01.07.00
  • hp elitebook_640_14_inch_g9_notebook_pc_firmware 01.07.00

Is CVE-2022-27540 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
2y ago

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/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.