How severe is CVE-2025-20083?

CVE-2025-20083 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-20083 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-20083?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-20083 have an EU (EUVD) identifier?

Yes. CVE-2025-20083 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14567.

When was CVE-2025-20083 published?

CVE-2025-20083 was published on 2025-05-13 and last updated on 2026-06-17.

CVE-2025-20083

CVE-2025-20083 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14567
Weakness: CWE-287
Published: 2025-05-13
Last modified: 2026-06-17

Description

Improper authentication in the firmware for the Intel(R) Slim Bootloader may allow a privileged user to potentially enable escalation of privilege via local access.

Frequently asked questions

What is CVE-2025-20083?: Improper authentication in the firmware for the Intel(R) Slim Bootloader may allow a privileged user to potentially enable escalation of privilege via local access.
How severe is CVE-2025-20083?: CVE-2025-20083 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-20083 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-20083?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-20083 have an EU (EUVD) identifier?: Yes. CVE-2025-20083 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14567.
When was CVE-2025-20083 published?: CVE-2025-20083 was published on 2025-05-13 and last updated on 2026-06-17.

References

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01290.html

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CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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