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CVE-2025-2486

26
FAUCET Score

CVE-2025-2486 is a high-severity vulnerability affecting Ubuntu edk2 UEFI firmware packages, where the UEFI Shell could be accessed in Secure Boot environments, potentially bypassing Secure Boot constraints. This local vulnerability has a CVSS score of 8.8, indicating high impact on confidentiality, integrity, and availability, with low attack complexity and privileges required. While an incomplete fix for a previous CVE was attempted, this vulnerability represents an additional repair. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
202402*CPE matchmatch criteria
cpe:2.3:a:tianocore:edk2:202402*:*:*:*:*:*:*:*
202405CPE matchmatch criteria
cpe:2.3:a:tianocore:edk2:202405:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

3.7LOW

CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
NONE
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
HIGH
Exploit Maturity
UNREPORTED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.13%
Probability of exploitation in next 30 days
EPSS Percentile
2.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0013 is in the 13th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (2)

redhatCVE-2025-2486Low

edk2: edk2: UEFI Shell access in Secure Boot environments allows bypass of Secure Boot constraints

Nov 26, 2025
microsoft2025-Nov/CVE-2025-2486Low

UEFI Shell accessible in AAVMF with Secure Boot enabled on Ubuntu

Nov 11, 2025

References

bugs.launchpad.net / ubuntu/+source/edk2/+bug/2101797
PatchThird Party Advisory