Vulnerability in Vantage6
CVE-2025-43866
vantage6 is an open-source infrastructure for privacy preserving analysis. The JWT secret key in the vantage6 server is auto-generated unless defined by the user. The auto-generated key is a UUID1, which is not cryptographically secure as…
EPSS: 0.003 (24.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Vantage6 — versions < 4.11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-43866?
- CVE-2025-43866 is a high-severity vulnerability in Vantage6, classified under Use of Insufficiently Random Values. CVSS score: 7.5/10. Published 2025-06-12.
- How severe is CVE-2025-43866?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-43866 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.