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Exploited vulnerability · CISA KEV

Is CVE-2020-25079 exploited? Yes: in CISA KEV since 5 Aug 2025

Gociux · D-Link DCS-2530L and DCS-2670L Devices · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2020-25079, D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 5 Aug 2025, 1798 days after it was published. It affects D-Link DCS-2530L and DCS-2670L Devices. 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.

exploitedYesCISA KEV · 5 Aug 2025
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity8.8CVSS 3.1 · high
US federal due26 Aug 2025BOD 22-01 deadline

What it is

D-Link DCS-2530L and DCS-2670L devices contains a command injection vulnerability in the cgi-bin/ddns_enc.cgi. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

VendorD-Link (26 exploited CVEs in KEV)
ProductDCS-2530L and DCS-2670L Devices
VulnerabilityD-Link DCS-2530L and DCS-2670L Command Injection Vulnerability
WeaknessCWE-77
Published2 Sep 2020
Added to KEV5 Aug 2025
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for DCS-2530L and DCS-2670L Devices 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 2 Sep 2020.
  4. Get told next time. Email alerts when CISA adds a CVE for D-Link.

Other exploited CVEs in DCS-2530L and DCS-2670L Devices

References

Questions

Is CVE-2020-25079 being exploited?

Yes. CISA added CVE-2020-25079 to the Known Exploited Vulnerabilities catalog on 5 Aug 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2020-25079 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2020-25079?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check D-Link's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected DCS-2530L and DCS-2670L Devices and watch it for signs of compromise.

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 August 2025 · D-Link scorecard · act-now radar.

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