CVE-2026-76591 TRENDnet TEW-755AP ssi email.cgi log_email_server command injection
Remote attackers can execute arbitrary commands on TRENDnet TEW-755AP devices via the email.cgi log_email_server function.
- 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-2026-76591?
CVE-2026-76591 is a medium-severity command injection vulnerability in TRENDnet TEW-755AP, published on 19 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security flaw has been discovered in TRENDnet TEW-755AP up to 20260702. This affects the function log_email_server of the file /cgi-bin/email.cgi of the component ssi. Performing a manipulation results in command injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.
Which versions are affected by CVE-2026-76591?
How do I fix CVE-2026-76591?
No fix has been published for CVE-2026-76591 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-2026-76591 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-76591 exists.
Sources
Also known as GHSA-9vvw-px6q-c765.