Exploited vulnerability · CISA KEV

Is CVE-2025-29635 exploited? Yes: in CISA KEV since 24 Apr 2026

Gociux · D-Link DIR-823X · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-29635, D-Link DIR-823X Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 24 Apr 2026, 395 days after it was published. It affects D-Link DIR-823X. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What it is

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.

What to do

1. Check whether you run it. Look for DIR-823X in your asset inventory, including appliances and cloud images. Stack check lists every exploited D-Link CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 25 Mar 2025.
4. Get told next time. Email alerts when CISA adds a CVE for D-Link.

References

• supportannouncement.us.dlink.com/security/publication.aspx
• nvd.nist.gov/vuln/detail/CVE-2025-29635

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in April 2026 · D-Link scorecard · act-now radar.