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PatchSiren cyber security CVE debrief

CVE-2026-40639 Dell CVE debrief

CVE-2026-40639 is a MEDIUM-severity vulnerability in Dell Client Platform BIOS, with a CVSS score of 5.7. It involves Weak Encoding for Password, allowing an unauthenticated attacker with physical access to potentially exploit the vulnerability, leading to Elevation of Privileges.

Vendor
Dell
Product
Dell Edge Gateway 3000
CVSS
MEDIUM 5.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-09
Advisory published
2026-06-09
Advisory updated
2026-06-09

Who should care

Administrators and users of Dell Client Platform BIOS should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability exists in the Dell Client Platform BIOS due to weak encoding for passwords. An unauthenticated attacker with physical access could potentially exploit this vulnerability, leading to Elevation of Privileges.

Defensive priority

MEDIUM

Recommended defensive actions

  • Apply the necessary patches or updates provided by Dell to fix the vulnerability.
  • Restrict physical access to the affected systems to prevent unauthorized exploitation.

Evidence notes

The CVE record was published on 2026-06-09T19:17:53.043Z and modified on 2026-06-09T19:30:24.713Z. The vulnerability is tracked under CWE-261.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-40639 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-40639

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-40639 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-40639

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.