What is CVE-2026-49973?

CVE-2026-49973 is a critical-severity vulnerability, classified under Missing Authentication for Critical Function. CVSS score: 9.4/10. Published 2026-06-11.

How severe is CVE-2026-49973?

Critical severity. CVSS v3 base score is 9.4 out of 10.

CVE-2026-49973

CVE-2026-49973

Hermes WebUI before version 0.51.358 contains an improper access control vulnerability that allows unauthenticated remote attackers to hijack initial setup by submitting the _set_password parameter to the settings API endpoint without any…

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

disclosure@vulncheck.com
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Frequently asked questions

What is CVE-2026-49973?: CVE-2026-49973 is a critical-severity vulnerability, classified under Missing Authentication for Critical Function. CVSS score: 9.4/10. Published 2026-06-11.
How severe is CVE-2026-49973?: Critical severity. CVSS v3 base score is 9.4 out of 10.