CVE-2026-76582 TRENDnet TEW-821DAP ssi ping.cgi system command injection
Remote attackers can execute arbitrary system commands on TRENDnet TEW-821DAP devices via the ping.cgi interface.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76582?
CVE-2026-76582 is a medium-severity command injection vulnerability in TRENDnet TEW-821DAP, published on 19 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected is the function popen/system of the file /cgi-bin/ping.cgi of the component ssi. Executing a manipulation of the argument ipaddr can lead to command injection. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized.
Which versions are affected by CVE-2026-76582?
How do I fix CVE-2026-76582?
No fix has been published for CVE-2026-76582 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-2026-76582 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-76582 exists.
Sources
Also known as GHSA-84jr-qg5v-fgf4.