Skip to content
Fencer Vulns
high 7.0

CVE-2023-26299 json

A potential Time-of-Check to Time-of-Use (TOCTOU) vulnerability has been identified in certain HP PC products using AMI UEFI Firmware (syst…

published 2023-06-30 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-30122

cvss
7.0
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 2%
public exploits
0
none known

Summary

A potential Time-of-Check to Time-of-Use (TOCTOU) vulnerability has been identified in certain HP PC products using AMI UEFI Firmware (system BIOS), which might allow arbitrary code execution. AMI has released updates to mitigate the potential vulnerability.

Patch / fix

  • hp 260_g4_desktop_mini_firmware 2.14
  • hp t430_firmware 00.01.11
  • hp t628_firmware 00.01.10
  • hp 240_g10_firmware f.04
  • hp 245_g6_firmware f.35
  • hp 245_g7_firmware f.69
  • hp 245_g8_firmware f.25
  • hp 247_g8_firmware f.69
  • hp 250_g10_firmware f.05
  • hp 255_g10_firmware f.08
  • hp 349_g7_firmware f.28
  • hp 470_g10_firmware f.02
  • hp 470_g9_firmware f.05
  • hp zhan_99_g2_firmware f.24
  • hp zhan_99_g4_firmware f.08
  • hp vr_backpack_g2_firmware f.28

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
23 mo ago

Exploit prediction

0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 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 products using AMI UEFI Firmware

Classification

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

References

Sources

Fencer Vulns 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.