CVE-2022-22567

Modified BIOS installation via authenticity verification failure

Published Feb 9, 2022 · Updated Sep 16, 2024

Insufficient authenticity verification in Dell Client Platform BIOS before 1.15 allows local users to install modified firmware. Dell has not disclosed the verification locus or the operation that accepts attacker-controlled firmware as authentic. Exploitation requires local high privileges and replaces trusted platform firmware with attacker-modified BIOS code.

CVSS severity4.7
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient authenticity verification in Dell Client Platform BIOS before 1.15 allows local users to install modified firmware. Dell has not disclosed the verification locus or the operation that accepts attacker-controlled firmware as authentic. Exploitation requires local high privileges and replaces trusted platform firmware with attacker-modified BIOS code.

The record

CVE
CVE-2022-22567
Published
Feb 9, 2022
Updated
Sep 16, 2024
Vendor
Dell
Product
Dell Client Platform BIOS
Classifications
CWE-345, T1542.001
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <1.15

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Dell · Dell Client Platform BIOSversion=unspecified <1.15

Published CVSS scores

5.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
4.7DellCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity
T1542.001Pre-OS Boot: System Firmware

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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