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CVE-2023-26299

HIGH
7
CVSS Score
Published: June 30, 2023 at 03:40 PM UTC
Updated: June 17, 2026 at 05:43 AM UTC
119 products affected across 1 vendor255 G10 Firmware245 G8 Firmware260 G4 Desktop Mini Firmware

Using HP PC products using AMI UEFI Firmware by HP Inc.?

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Severity
HIGH7
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

200 G3 Firmware· HP
95%
All versions
hp-200-g3 (same device)
200 G4 22 All in One Firmware· HP
95%
All versions
hp-200-g4-22-all-in-one (same device)
200 Pro G4 22 All in One Firmware· HP
95%
All versions
hp-200-pro-g4-22-all-in-one (same device)
205 G4 22 All in One Firmware· HP
95%
All versions
hp-205-g4-22-all-in-one (same device)
205 Pro G4 22 All in One Firmware· HP
95%
All versions
hp-205-pro-g4-22-all-in-one (same device)
240 G10 Firmware· HP
95%
v < f.04
Affected range stops below f.04, so it looks safe — our inference, not a vendor statement
hp-240-g10 (same device)
245 G6 Firmware· HP
95%
v < f.35
Affected range stops below f.35, so it looks safe — our inference, not a vendor statement
hp-245-g6 (same device)
245 G7 Firmware· HP
95%
v < f.69
Affected range stops below f.69, so it looks safe — our inference, not a vendor statement
hp-245-g7 (same device)
245 G8 Firmware· HP
95%
v < f.25
Affected range stops below f.25, so it looks safe — our inference, not a vendor statement
hp-245-g8 (same device)
247 G8 Firmware· HP
95%
v < f.69
Affected range stops below f.69, so it looks safe — our inference, not a vendor statement
hp-247-g8 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

PatchVendor Advisory
Source: [email protected]
https://support.hp.com/us-en/document/ish_8642715-8642746-16/hpsbhf03850

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7HIGH[email protected]
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-367

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