Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-20165

27
FAUCET Score

CVE-2021-20165 describes a Cross-Site Request Forgery (CSRF) vulnerability in Trendnet AC2600 TEW-827DRU firmware version 2.08B01. The router's web interface lacks proper CSRF protection, and existing tokens are trivially bypassable. This flaw carries a high CVSS score of 8.8, indicating that an unauthenticated attacker could exploit it with low complexity to achieve high impact on confidentiality, integrity, and availability, typically requiring user interaction. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.08b01CPE matchmatch criteria
cpe:2.3:o:trendnet:tew-827dru_firmware:2.08b01:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
46.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 48th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Patches (3)

giteavendor investigatingvia llm_extracted
opensshvendor investigatingvia llm_extracted
railsvendor investigatingvia llm_extracted

Vendor Advisories (3)

opensshllm-openssh-45a77a1aa1e5a984CRITICAL

Trendnet AC2600 TEW-827DRU Multiple Vulnerabilities

Dec 30, 2021
giteallm-gitea-3b028f48a893fc43CRITICAL

Trendnet AC2600 TEW-827DRU Multiple Vulnerabilities

Dec 30, 2021
railsllm-rails-32c592b9c1e5a4e5CRITICAL

Trendnet AC2600 TEW-827DRU Multiple Vulnerabilities

Dec 30, 2021

References

tenable.com / security/research/tra-2021-54
ExploitThird Party Advisory