How severe is CVE-2026-35159?

CVE-2026-35159 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2026-35159 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-35159?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-35159 published?

CVE-2026-35159 was published on 2026-07-03 and last updated on 2026-07-07.

CVE-2026-35159

CVE-2026-35159 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-305.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-305
Published: 2026-07-03
Last modified: 2026-07-07

Description

Dell Client Platform BIOS contains an Authentication Bypass by Primary Weakness vulnerability. An unauthenticated attacker with physical access could potentially exploit this vulnerability, leading to Information Disclosure.

Frequently asked questions

What is CVE-2026-35159?: Dell Client Platform BIOS contains an Authentication Bypass by Primary Weakness vulnerability. An unauthenticated attacker with physical access could potentially exploit this vulnerability, leading to Information Disclosure.
How severe is CVE-2026-35159?: CVE-2026-35159 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2026-35159 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-35159?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-35159 published?: CVE-2026-35159 was published on 2026-07-03 and last updated on 2026-07-07.

References

https://www.dell.com/support/kbdoc/en-us/000452197/dsa-2026-195

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