# CVE-2026-64827

## Summary

- **CVE ID:** CVE-2026-64827
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-807
- **Published:** Aug 3, 2026
- **Last Modified:** Aug 7, 2026

## Description

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 page name from PHP_SELF and skips authentication when the value matches 'login_admin.php'. Attackers can append '/login_admin.php' to the path of any target PHP script to cause the authentication check to pass and gain unauthenticated access to all PHP scripts under the manager HTML directory.

## Affected Products

- Telenia Software — TVox (26.0.0)
- Telenia Software — TVox (24.0.0)

## References

- [CNA](https://karmainsecurity.com/KIS-2026-14)
- [CNA](https://www.teleniasoftware.com/)
- [CNA](https://www.vulncheck.com/advisories/telenia-tvox-authentication-bypass-via-set-env-php)
- [CVE](http://seclists.org/fulldisclosure/2026/Aug/30)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.48%
- **EPSS Percentile:** 39.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._