What is CVE-2020-27866?

CVE-2020-27866 is a high-severity vulnerability in Netgear Ac2100, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.8/10. Published 2021-02-12.

How severe is CVE-2020-27866?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2020-27866 known to be exploited?

9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Netgear Ac2100

CVE-2020-27866

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…

EPSS: 0.087 (94.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Netgear Ac2100
Netgear Ac2100_firmware
Netgear Ac2400
Netgear Ac2400_firmware
Netgear Ac2600
Netgear Ac2600_firmware
Netgear Multiple Routers — versions firmware version 1.2.0.62_1.0.1
Netgear R6020
Netgear R6020_firmware
Netgear R6080

Weakness classification (CWE)

Public proof-of-concept exploits

References

zdi-disclosures@trendmicro.com (x_refsource_MISC, Vendor Advisory)
zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-27866?: CVE-2020-27866 is a high-severity vulnerability in Netgear Ac2100, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.8/10. Published 2021-02-12.
How severe is CVE-2020-27866?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-27866 known to be exploited?: 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.