CVE-2025-43879 Command injection in WRH-733GBK
Remote unauthenticated attackers can execute arbitrary OS commands via the telnet function in ELECOM WRH-733 routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-43879?
CVE-2025-43879 is a critical command injection vulnerability in ELECOM CO.,LTD. WRH-733GBK, published on 24 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
WRH-733GBK and WRH-733GWH contain an improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in the telnet function. If a remote unauthenticated attacker sends a specially crafted request to the affected product, an arbitrary OS command may be executed.
Weakness: CWE-78
Which versions are affected by CVE-2025-43879?
How do I fix CVE-2025-43879?
No fix has been published for CVE-2025-43879 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-2025-43879 being exploited?
There is no known exploitation of CVE-2025-43879 in the wild and no public exploit code.
Sources
Also known as GHSA-pg9g-gj66-h46r.