Is CVE-2025-2486 in the CISA KEV catalog?

No. CVE-2025-2486 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-2486?

CVE-2025-2486 has a CVSS v3 base score of 8.8 (Low).

What is the EPSS score for CVE-2025-2486?

CVE-2025-2486 has an EPSS score of 0.11% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-2486?

Upgrade edk2 on debian 11 to 2020.11-2+deb11u2 or later.

CVE & CISA-KEV Catalog

CVE-2025-2486

LOW

8.8

CVSS v3

NVD

Description

The Ubuntu edk2 UEFI firmware packages accidentally allowed the UEFI Shell to be accessed in Secure Boot environments, possibly allowing bypass of Secure Boot constraints. Versions 2024.05-2ubuntu0.3 and 2024.02-2ubuntu0.3 disable the Shell. Some previous versions inserted a secure-boot-based decision to continue running inside the Shell itself, which is believed to be sufficient to enforce Secure Boot restrictions. This is an additional repair on top of the incomplete fix for CVE-2023-48733.

CWE-489

How to fix

Remediation Available

edk2Debian

Fixed in:2020.11-2+deb11u2CVE-2025-2486

Fixed in:2022.11-6+deb12u1CVE-2025-2486

Fixed in:2023.11-7CVE-2025-2486

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.11%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Patch1

bugs.launchpad.net

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-19.