CVE-2026-8273 D-Link DNS-320 system_mgr.cgi cgi_merge_user os command injection
Remote attackers can execute arbitrary OS commands on D-Link DNS-320 devices via vulnerable CGI scripts, requiring authentication.
- 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-2026-8273?
CVE-2026-8273 is a medium-severity command injection vulnerability in Dlink Dns-320 Firmware, published on 11 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A weakness has been identified in D-Link DNS-320 2.06B01. This impacts the function cgi_set_host/cgi_set_ntp/cgi_fan_control/cgi_merge_user of the file /cgi-bin/system_mgr.cgi. This manipulation causes os command injection. It is possible to initiate the attack remotely.
Which versions are affected by CVE-2026-8273?
It affects 1 product.
Products include Dlink Dns-320 Firmware.
How do I fix CVE-2026-8273?
No fix has been published for CVE-2026-8273 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-2026-8273 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8273 exists.
Other vulnerabilities in Dlink Dns-320 Firmware
- CVE-2020-25506 D-Link DNS-320 Device Command Injection
- CVE-2019-16057 D-Link DNS-320 Remote Code Execution
- CVE-2024-10914 D-Link DNS-320/DNS-320LW/DNS-325/DNS-340L account_mgr.cgi cgi_user_add os command injection
- CVE-2024-10915 D-Link DNS-320/DNS-320LW/DNS-325/DNS-340L account_mgr.cgi cgi_user_add os command injection
- CVE-2024-10916 D-Link DNS-320/DNS-320LW/DNS-325/DNS-340L HTTP GET Request info.xml information disclosure
Sources
Also known as GHSA-5jp6-jc7m-x7q9.