Quick answers
- Is CVE-2026-85222 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-85222 being exploited in the wild.
- How severe is CVE-2026-85222?
- Critical severity, with a CVSS score of 9.1, published 3 September 2026.
- Which products and versions are affected?
- D-Link DNS-340L 1.01B04.
- Is there a fix for CVE-2026-85222?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-85222 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-85222?
- Check whether you run D-Link DNS-340L at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A command injection vulnerability exists in the /cgi-bin/addon_center.cgi file of the D-Link DNS-340L Add-On Center component. The vulnerability is triggered through manipulation of the f_name, f_url, f_flag, and f_login_user parameters. The attack is remotely exploitable without requiring authentication. An attacker can inject arbitrary OS commands which will be executed with the privileges of the web server process, allowing full device compromise. The exploit code has been publicly disclosed.
Affected products
- D-Link DNS-340L 1.01B04
Timeline
- 2026-09-03: disclosed