CVE-2025-2486
LOWDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
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
Impact
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 3% of all known CVEs.
References
Related Vulnerabilities
Other CWE-489 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-32645 | Critical | 9.8 | 54% | - | - |
| CVE-2017-5259 | High | 8.8 | 39% | - | - |
| CVE-2022-20649 | High | 8.1 | 12% | - | - |
| CVE-2022-38715 | High | 8.8 | 3.7% | - | - |
| CVE-2018-5454 | High | 8.1 | 3.5% | - | - |
| CVE-2021-3972 | Medium | 6.7 | 3.0% | - | Fix |
Common questions
How do I fix CVE-2025-2486?
Upgrade edk2 on debian 11 to 2020.11-2+deb11u2 or later.
Is CVE-2025-2486 being actively exploited?
Not that we know of. CVE-2025-2486 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.13% is the estimated probability that it will be exploited in the next 30 days. That is higher than 3% of all scored CVEs.
How severe is CVE-2025-2486?
CVE-2025-2486 has a CVSS v3 base score of 8.8, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2025-2486 affect?
Published advisories record a fix for edk2 (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2025-2486
Markdown
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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.