CVE entry · CVE-2025-29635
CVE-2025-29635: D-Link DIR-823X Command Injection Vulnerability
D-Link DIR-823X contains a command injection vulnerability that allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/set_prohibiting via the corresponding function. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
- Actively exploited: added to CISA’s KEV catalog on April 24, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: May 8, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes D-Link DIR-823X, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (supportannouncement.us.dlink.com)
- NVD entry (NIST)
- CISA KEV catalog