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CVE-2025-23091

17
FAUCET Score

CVE-2025-23091 describes an improper certificate validation vulnerability in UniFi OS devices configured with Identity Enterprise. This flaw allows a remote attacker to perform a man-in-the-middle (MitM) attack during application updates, potentially compromising the integrity of the update process. Rated Medium (CVSS 5.9), the attack requires high complexity but no user interaction, leading to a high impact on integrity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Ubiquiti IncEFG
>= 4.1.13, < 4.1.13CNA affecteddefault unaffected
Ubiquiti IncUCG-Max
>= 4.1.13, < 4.1.13CNA affecteddefault unaffected
Ubiquiti IncUCK
>= 4.1.11, < 4.1.11CNA affecteddefault unaffected
Ubiquiti IncUCK-Enterprise
>= 4.1.11, < 4.1.11CNA affecteddefault unaffected
Ubiquiti IncUCKP
>= 4.1.11, < 4.1.11CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
9.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 1st percentile among its peer group of 19,958 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

community.ui.com / releases/Security-Advisory-Bulletin-045-045/6011bc61-f2eb-457f-b71d-755703817aaf