What is CVE-2026-64827?

CVE-2026-64827 is a critical-severity vulnerability in Telenia Software Tvox, classified under CWE-807. CVSS score: 9.8/10. Published 2026-08-03.

How severe is CVE-2026-64827?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Telenia Software Tvox

CVE-2026-64827

Telenia Software TVox 26.5.3 and prior 26.x versions, and 24.9.21 and prior 24.x versions, contain an authentication bypass vulnerability in set_env.php where the redirectToLoginAdminIRequestHaveAccessToken() function derives the current p…

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Telenia Software Tvox — versions 26.0.0, 24.0.0

Weakness classification (CWE)

CWE-807

References

disclosure@vulncheck.com (technical-description, exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-64827?: CVE-2026-64827 is a critical-severity vulnerability in Telenia Software Tvox, classified under CWE-807. CVSS score: 9.8/10. Published 2026-08-03.
How severe is CVE-2026-64827?: Critical severity. CVSS v3 base score is 9.8 out of 10.