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CVE-2025-66698

33
FAUCET Score

CVE-2025-66698 is a high-severity authentication bypass vulnerability affecting Semantic machines v5.4.8, specifically the 'veda' product. Attackers can exploit this by sending crafted HTTP requests to various API endpoints, gaining unauthorized access without requiring any user interaction. With a CVSS score of 8.6 (HIGH), this network-exploitable flaw has a critical impact on confidentiality, though integrity and availability are not directly affected. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered significant community discussion, indicating potential future interest from threat actors.

Impacted Technologies

VendorProductVersion(s)CPE
5.4.8CPE matchmatch criteria
cpe:2.3:a:semantic-machines:veda:5.4.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 14th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Remediation records are not available for this CVE.

References

github.com / Perunchess/CVE-2025-66698
ExploitThird Party Advisory