Vulnerability · Published Aug 17, 2026 · Assigned by VulDB

CVE-2026-19977EFM ipTIME A3004T Session Validation httpcon_check_session_url improper authentication

Critical 10.0

In plain English

A critical-severity improper authentication in ipTIME A3004T from EFM. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities).

Severity (CVSS 3.1)10.0Critical

Exploit odds (30 days)1.3%top 28.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was detected in EFM ipTIME A3004T 14.19.0. The affected element is the function httpcon_check_session_url of the component Session Validation. Performing a manipulation results in improper authentication. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
EFM	ipTIME A3004T	14.19.0

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-391156 | EFM ipTIME A3004T Session Validation httpcon_check_session_url improper authentication vdb-entry, technical-description
VDB-391156 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-19977 | CVE Analysis and Report third-party-advisory
Submit #873848 | iptime A3004T 14.19.0 Authentication bypass and arbitrary password reset vulnerabiliti third-party-advisory
https://github.com/AdminSafe/CVE/issues/1 exploit, issue-tracking