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 are accessible via the WAN interface via IPv6 by default.
Vulnerability class: Broken Access Control
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.014 (72.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Trendnet Tew-827dru — versions 2.0
- Trendnet Tew-827dru Firmware — versions 2.08b01
- Trendnet Ac2600 Tew-827dru — versions 2.08B01
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.tenable.com/security/research/tra-2021-54 (Third Party Advisory)
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.