PatchSiren

PatchSiren cyber security CVE debrief

CVE-2016-6277 NETGEAR CVE debrief

CVE-2016-6277 is a NETGEAR Multiple Routers remote code execution vulnerability that CISA has listed in its Known Exploited Vulnerabilities (KEV) catalog. That KEV listing means defenders should treat it as a high-priority exposure, especially on any NETGEAR router deployment that is still in service and not confirmed remediated. The supplied corpus does not include the attack path or affected model list, so the safest response is to validate inventory, confirm vendor guidance, and apply the recommended updates or mitigation steps without delay.

Vendor
NETGEAR
Product
Multiple Routers
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-03-07
Original CVE updated
2022-03-07
Advisory published
2022-03-07
Advisory updated
2022-03-07

Who should care

Organizations that operate NETGEAR routers, especially teams responsible for edge network devices, branch office connectivity, and any router fleet that has not been explicitly verified as updated against vendor guidance.

Technical summary

The available evidence identifies CVE-2016-6277 as a NETGEAR Multiple Routers remote code execution issue and shows that CISA added it to the KEV catalog on 2022-03-07 with a remediation due date of 2022-09-07. Beyond that, the supplied sources do not provide exploit mechanics, affected firmware versions, or remediation details. Because it is in KEV, the operational assumption should be that the weakness has been exploited in the wild and merits urgent patching or mitigation per vendor instructions.

Defensive priority

High. KEV inclusion indicates confirmed real-world exploitation and makes this a time-sensitive remediation item for any exposed NETGEAR router environment.

Recommended defensive actions

  • Identify all NETGEAR routers in the environment and confirm whether any are affected by vendor guidance for CVE-2016-6277.
  • Apply vendor-recommended updates or mitigations as soon as possible.
  • If immediate patching is not possible, reduce exposure by limiting administrative access and restricting unnecessary network reachability to the device.
  • Verify remediation by checking firmware/version status after maintenance and documenting the result.
  • Monitor for any signs of unauthorized device access or configuration changes on exposed routers.

Evidence notes

This debrief is based only on the supplied CISA KEV source item and the official CVE/NVD/CISA links provided in the corpus. The corpus confirms the CVE identifier, NETGEAR as the vendor, Multiple Routers as the product scope, KEV inclusion, and the KEV dates. It does not include exploit details, affected model inventory, or vendor remediation text, so those points are intentionally not asserted here.

Sources and references

Verified primary and authoritative sources

  • CVE-2016-6277 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2016-6277

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2016-6277 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2016-6277

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.