CVE-2025-29989

BIOS upgrade denial via mutable security version

Published Apr 10, 2025 · Updated Apr 10, 2025

Security-version rollback weakness in Dell Client Platform BIOS allows local users with high privileges to deny future BIOS upgrades. The security-version control accepts an attacker-influenced value that can block later firmware; Dell has not disclosed the storage location or mutation path. Exploitation requires local access, high privileges, and user interaction; the reported consequence is failed BIOS updating rather than a system crash.

CVSS severity3.1
Low
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

Security-version rollback weakness in Dell Client Platform BIOS allows local users with high privileges to deny future BIOS upgrades. The security-version control accepts an attacker-influenced value that can block later firmware; Dell has not disclosed the storage location or mutation path. Exploitation requires local access, high privileges, and user interaction; the reported consequence is failed BIOS updating rather than a system crash.

The record

CVE
CVE-2025-29989
Published
Apr 10, 2025
Updated
Apr 10, 2025
Vendor
Dell
Product
Dell Client Platform BIOS
Classifications
CWE-1328, CAPEC-176
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Apr 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=N/A <1.18.0
  2. Affected versionversion=N/A <2.42.0
  3. Affected versionversion=N/A <2.46.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Dell · Dell Client Platform BIOSversion=N/A <1.18.0; version=N/A <2.42.0; version=N/A <2.46.0

Published CVSS scores

3.1DellCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:L
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

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-1328Security Version Number Mutable to Older Versions
CAPEC-176Configuration/Environment Manipulation

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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