CVE-2026-1741 EFM ipTIME A8004T Debug d.cgi httpcon_check_session_url backdoor

High 7.5 Published 2 Feb 2026 Updated 23 Feb 2026

A backdoor in the debug interface of ipTIME A8004T routers allows remote attackers to execute arbitrary commands via the cmd argument.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-1741?

CVE-2026-1741 is a high-severity vulnerability in EFM ipTIME A8004T, published on 2 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability was determined in EFM ipTIME A8004T 14.18.2. Affected is the function httpcon_check_session_url of the file /sess-bin/d.cgi of the component Debug Interface. This manipulation of the argument cmd causes backdoor. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-912

Which versions are affected by CVE-2026-1741?

It affects 1 product.

Products include Iptime A8004t Firmware.

How do I fix CVE-2026-1741?

No fix has been published for CVE-2026-1741 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-1741 being exploited?

There is no known exploitation of CVE-2026-1741 in the wild and no public exploit code.

Sources

Also known as GHSA-p6m8-4rxr-8v7p.