Vulnerability · CVE-2025-2486
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.
Published Nov 26, 2025 · catalog updated Nov 26, 2025 · Ubuntu EDK2
Last checked Oct 28, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-2486. EPSS is 0.14%. Act only if a listed version of Ubuntu EDK2 is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-2296 · High
- CVE-2024-38798 · Medium
- CVE-2024-38805 · Medium
- CVE-2025-3770 · High
- Severity
- Low3.7
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.14%
- Remediation
- Version ranges on file
- Affected products
- vendor Ubuntu EDK2 2024.02 <2024.02-2ubuntu0.3
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Ubuntu EDK2 2024.02 <2024.02-2ubuntu0.32024.02 <2024.02-2ubuntu0.3
How to fix CVE-2025-2486
Upgrade
CVE-2025-2486 lists a fix boundary at 2024.02-2ubuntu0.3. Compare the installed build with that boundary before you change production.
Version check
Seen in 2024.02 <2024.02-2ubuntu0.3
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-2486. EPSS is 0.14%. Act only if a listed version of Ubuntu EDK2 is installed.
Which versions are affected?
Compare what you have installed with Ubuntu EDK2 2024.02 <2024.02-2ubuntu0.3 2024.02 <2024.02-2ubuntu0.3. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.14%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Nov 26, 2025 · EUVD
Detected
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
Nov 26, 2025 · EUVD
Updated
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
Sources
- CVE.orgVulnerability recordCVE-2025-2486
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-2486
30-day exploitation probability 0.14%
first.org - EUVDVulnerability recordEUVD-2025-199745
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 secu
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 28, 2026
- CVE.orgOct 28, 2026
- EUVDOct 28, 2026