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Exploited vulnerability · CISA KEV

Is CVE-2016-1555 exploited? Yes: in CISA KEV since 25 Mar 2022

Gociux · NETGEAR Wireless Access Point (WAP) Devices · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2016-1555, NETGEAR Multiple WAP Devices Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 25 Mar 2022, 1799 days after it was published. It affects NETGEAR Wireless Access Point (WAP) Devices. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 25 Mar 2022
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due15 Apr 2022BOD 22-01 deadline

What it is

Multiple NETGEAR Wireless Access Point devices allows unauthenticated web pages to pass form input directly to the command-line interface. Exploitation allows for arbitrary code execution.

VendorNETGEAR (8 exploited CVEs in KEV)
ProductWireless Access Point (WAP) Devices
VulnerabilityNETGEAR Multiple WAP Devices Command Injection Vulnerability
WeaknessCWE-77
Published21 Apr 2017
Added to KEV25 Mar 2022
Reported by (CNA)certcc

What to do

  1. Check whether you run it. Look for Wireless Access Point (WAP) Devices in your asset inventory, including appliances and cloud images. Stack check lists every exploited NETGEAR CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  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 21 Apr 2017.
  4. Get told next time. Email alerts when CISA adds a CVE for NETGEAR.

References

Questions

Is CVE-2016-1555 being exploited?

Yes. CISA added CVE-2016-1555 to the Known Exploited Vulnerabilities catalog on 25 Mar 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2016-1555 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-2016-1555?

Apply updates per vendor instructions. Check NETGEAR's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Wireless Access Point (WAP) 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 March 2022 · NETGEAR scorecard · act-now radar.

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