CVE-2026-78167: EFM ipTIME T16000M Session Validation httpcon_check_session_url improper authentication

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-24 · updated 2026-10-12
Weakness: CWE-287

Description

A weakness has been identified in EFM ipTIME T16000M 14.20.2. The impacted element is the function httpcon_check_session_url of the component Session Validation Handler. This manipulation causes improper authentication. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

EFM ipTIME T16000M: 14.20.2

References

https://github.com/AdminSafe/CVE/issues/2
https://github.com/AdminSafe/CVE/issues/3
https://vuldb.com/cve/CVE-2026-78167
https://vuldb.com/submit/874154
https://vuldb.com/submit/874302
https://vuldb.com/vuln/394556
https://vuldb.com/vuln/394556/cti

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