CVE-2026-4611 TOTOLINK X6000R shttpd setLanCfg privilege escalation
Remote attackers can execute arbitrary OS commands via the Hostname argument in setLanCfg, leading to privilege escalation on TOTOLINK X6000R routers.
- 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-2026-4611?
CVE-2026-4611 is a high-severity command injection vulnerability in Totolink X6000r Firmware, published on 23 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw has been found in TOTOLINK X6000R 9.4.0cu.1360_B20241207/9.4.0cu.1498_B20250826. Affected by this issue is the function setLanCfg of the file /usr/sbin/shttpd. Executing a manipulation of the argument Hostname can lead to os command injection. The attack may be launched remotely.
Which versions are affected by CVE-2026-4611?
It affects 1 product.
Products include Totolink X6000r Firmware.
How do I fix CVE-2026-4611?
No fix has been published for CVE-2026-4611 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-2026-4611 being exploited?
There is no known exploitation of CVE-2026-4611 in the wild and no public exploit code.
Other vulnerabilities in Totolink X6000r Firmware
Sources
Also known as GHSA-56rf-g9gc-682p.