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Exploited vulnerability · CISA KEV

Is CVE-2016-20017 exploited? Yes: in CISA KEV since 8 Jan 2024

Gociux · D-Link DSL-2750B Devices · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2016-20017, D-Link DSL-2750B Devices Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 8 Jan 2024, 446 days after it was published. It affects D-Link DSL-2750B Devices. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 8 Jan 2024
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due29 Jan 2024BOD 22-01 deadline

What it is

D-Link DSL-2750B devices contain a command injection vulnerability that allows remote, unauthenticated command injection via the login.cgi cli parameter.

VendorD-Link (26 exploited CVEs in KEV)
ProductDSL-2750B Devices
VulnerabilityD-Link DSL-2750B Devices Command Injection Vulnerability
WeaknessCWE-77
Published19 Oct 2022
Added to KEV8 Jan 2024
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for DSL-2750B 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 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 19 Oct 2022.
  4. Get told next time. Email alerts when CISA adds a CVE for D-Link.

References

Questions

Is CVE-2016-20017 being exploited?

Yes. CISA added CVE-2016-20017 to the Known Exploited Vulnerabilities catalog on 8 Jan 2024, which means there is reliable evidence of exploitation in the wild.

Is CVE-2016-20017 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-2016-20017?

Apply mitigations per vendor instructions 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 DSL-2750B 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 January 2024 · D-Link scorecard · act-now radar.

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