CVE-2026-4499 D-Link DIR-820LW SSDP ssdpcgi_main os command injection
Remote attackers can execute arbitrary OS commands on D-Link DIR-820LW routers via the SSDP component, potentially compromising the device.
- 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-2026-4499?
CVE-2026-4499 is a medium-severity command injection vulnerability in D-Link DIR-820LW, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was determined in D-Link DIR-820LW 2.03. Affected is the function ssdpcgi_main of the component SSDP. Executing a manipulation can lead to os command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
Which versions are affected by CVE-2026-4499?
It affects 1 product.
Products include Dlink Dir-820lw Firmware.
How do I fix CVE-2026-4499?
No fix has been published for CVE-2026-4499 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-2026-4499 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4499 exists.
Other vulnerabilities in D-Link DIR-820LW
Sources
Also known as GHSA-7rx9-mpfx-g9fr.