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CVE-2025-66446

25
FAUCET Score

CVE-2025-66446 is a critical improper file permissions vulnerability affecting MaxKB AI assistant versions 2.3.1 and below. This flaw allows authenticated attackers to overwrite critical system files, including the dynamic linker, potentially leading to privilege escalation. With a CVSS score of 7.5 (HIGH), exploitation requires high attack complexity but can result in complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.4.0CPE matchmatch criteria
cpe:2.3:a:maxkb:maxkb:*:*:*:*:-:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
23.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 12th percentile among its peer group of 1,162 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

github.com / 1Panel-dev/MaxKB/releases/tag/v2.4.0
Release Notes
github.com / 1Panel-dev/MaxKB/security/advisories/GHSA-5xx2-3q9w-jpgf
Vendor Advisory