CVE-2026-75166 Privilege escalation in n/a
An authenticated low-privileged user can execute tcpdump as root to achieve arbitrary command execution on MBS-Solutions X-Serie Gateway firmware.
- 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-2026-75166?
CVE-2026-75166 is a high-severity vulnerability in n/a, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Insecure Permission vulnerability in MBS-Solutions X-Serie Gateway firmware V6_00_05 allows the low-privileged service user to execute /usr/bin/tcpdump as root without a password. By leveraging the tcpdump -z option, an authenticated attacker can achieve arbitrary command execution.
Which versions are affected by CVE-2026-75166?
How do I fix CVE-2026-75166?
No fix has been published for CVE-2026-75166 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-75166 being exploited?
There is no known exploitation of CVE-2026-75166 in the wild and no public exploit code.
Sources
Also known as GHSA-9445-3g3g-jjrx.