VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVReported exploited: VulnCheck KEV since Published CVSS 8.8 highEPSS 8.7% probability of exploitation in 30 days
NETGEAR

CVE-2020-27866: This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6…

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .

VulnCheck KEV lists it since . It cites 1 public report, the first from . VulnCheck's own honeypots also recorded exploitation attempts.

How likely is exploitation in the next 30 days?
8.7%

EPSS score, percentile 95.1 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
8.8 High

CVSS v3.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

  • firmware version 1.2.0.62_1.0.1

Versions by product

Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11355.

Source: CVE List, as of . About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (1 product)
NETGEAR Multiple Routers
StatusVersions
Affectedfirmware version 1.2.0.62_1.0.1

Source: CVE List, as of . About the data.

Weakness

CWE-288
  • CWE-288: Authentication Bypass Using an Alternate Path or Channel

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published
CVE record last updated

References

2

Known exploited NETGEAR vulnerabilities

  • CVE-2017-5521: NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability (added )
  • CVE-2017-6862: NETGEAR Multiple Devices Buffer Overflow Vulnerability (added )
  • CVE-2016-10174: NETGEAR WNR2000v5 Router Buffer Overflow Vulnerability (added )
  • CVE-2016-1555: NETGEAR Multiple WAP Devices Command Injection Vulnerability (added )
  • CVE-2017-6334: NETGEAR DGN2200 Devices OS Command Injection Vulnerability (added )