What is CVE-2021-20149?

CVE-2021-20149 is a critical-severity vulnerability in Trendnet Tew-827dru, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2021-12-30.

How severe is CVE-2021-20149?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-20149 known to be exploited?

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

Auth bypass in Trendnet Tew-827dru

CVE-2021-20149

Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient access controls for the WAN interface. The default iptables ruleset for governing access to services on the device only apply to IPv4. All services running on the devices…

Vulnerability class: Broken Access Control

EPSS: 0.014 (69.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Trendnet Tew-827dru — versions 2.0
Trendnet Tew-827dru_firmware — versions 2.08b01
N/a Trendnet Ac2600 Tew-827dru — versions 2.08B01

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

Public proof-of-concept exploits

References

vulnreport@tenable.com (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-20149?: CVE-2021-20149 is a critical-severity vulnerability in Trendnet Tew-827dru, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2021-12-30.
How severe is CVE-2021-20149?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-20149 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.