CVE-2025-66698

Name: CVE-2025-66698
Creator: NVD / NIST
Published: 2026-01-13T16:15:55.907+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2025-66698 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. An issue in Semantic machines v5.4.8 allows attackers to bypass authentication via sending a crafted HTTP request to various API endpoints.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

An issue in Semantic machines v5.4.8 allows attackers to bypass authentication via sending a crafted HTTP request to various API endpoints.

Metrics

CVSS 3.1

8.6/10

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

EPSS Probability

0.50%

39.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Semantic-Machines	Veda	5.4.8

References

http://semantic.comNot Applicable
http://veda.comBroken Link
https://github.com/Perunchess/CVE-2025-66698Exploit, Third Party Advisory

Timeline

Published: Jan 13, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-66698?

An issue in Semantic machines v5.4.8 allows attackers to bypass authentication via sending a crafted HTTP request to various API endpoints.

How severe is CVE-2025-66698?

CVE-2025-66698 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2025-66698?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-66698?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST