CVE-2026-7833 EFM ipTIME C200 ApplyRestore Endpoint iux_set.cgi sub_408F90 command injection
Remote attackers can execute arbitrary commands on EFM ipTIME C200 routers via the ApplyRestore endpoint, requiring immediate mitigation due to public exploit availability.
- 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-2026-7833?
CVE-2026-7833 is a high-severity command injection vulnerability in EFM ipTIME C200, published on 5 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A weakness has been identified in EFM ipTIME C200 up to 1.092. This vulnerability affects the function sub_408F90 of the file /cgi/iux_set.cgi of the component ApplyRestore Endpoint. This manipulation of the argument RestoreFile causes command injection. The attack can be initiated remotely. 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.
Which versions are affected by CVE-2026-7833?
How do I fix CVE-2026-7833?
No fix has been published for CVE-2026-7833 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-7833 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7833 exists.
Sources
Also known as GHSA-m3xj-gqh8-33xm.