CVE-2026-40639 — MEDIUM (5.7)

Vulnerability Description

Dell Client Platform BIOS contains a Weak Encoding for Password vulnerability. An unauthenticated attacker with physical access could potentially exploit this vulnerability, leading to Elevation of Privileges.

CVSS Score

5.7

MEDIUM

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-261

References

https://www.dell.com/support/kbdoc/en-us/000453482/dsa-2026-197

FAQ

What is CVE-2026-40639?

CVE-2026-40639 is a vulnerability with a CVSS score of 5.7 (MEDIUM). Dell Client Platform BIOS contains a Weak Encoding for Password vulnerability. An unauthenticated attacker with physical access could potentially exploit this vulnerability, leading to Elevation of Pr...

How severe is CVE-2026-40639?

CVE-2026-40639 has been rated MEDIUM with a CVSS base score of 5.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-40639?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.