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Exploited vulnerability · CISA KEV

Is CVE-2016-6277 exploited? Yes: in CISA KEV since 7 Mar 2022

Gociux · NETGEAR Multiple Routers · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2016-6277, NETGEAR Multiple Routers Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 7 Mar 2022, 1909 days after it was published. It affects NETGEAR Multiple Routers. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 7 Mar 2022
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity8.8CVSS 3.1 · high
US federal due7 Sep 2022BOD 22-01 deadline

What it is

NETGEAR confirmed multiple routers allow unauthenticated web pages to pass form input directly to the command-line interface, permitting remote code execution.

VendorNETGEAR (8 exploited CVEs in KEV)
ProductMultiple Routers
VulnerabilityNETGEAR Multiple Routers Remote Code Execution Vulnerability
WeaknessCWE-352
Published14 Dec 2016
Added to KEV7 Mar 2022
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for Multiple Routers 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 14 Dec 2016.
  4. Get told next time. Email alerts when CISA adds a CVE for NETGEAR.

References

Questions

Is CVE-2016-6277 being exploited?

Yes. CISA added CVE-2016-6277 to the Known Exploited Vulnerabilities catalog on 7 Mar 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2016-6277 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-2016-6277?

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 Multiple Routers 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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