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CVE-2021-20150

52
FAUCET Score

CVE-2021-20150 describes an information disclosure vulnerability in the Trendnet AC2600 TEW-827DRU router, specifically version 2.08B01. An attacker can bypass authentication by manipulating the setup wizard's redirection, allowing them to view sensitive information as an administrator. This medium-severity vulnerability (CVSS 5.3) requires no user interaction and has a low impact on confidentiality. While no active exploitation or public Metasploit/ExploitDB modules exist, Nuclei templates are available, and the vulnerability has received minimal community discussion or media coverage.

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

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
40.06%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Nuclei: CVE-2021-20150 · Feb 3, 2022
This CVE's current EPSS score of 0.4006 is in the 99th percentile among its peer group of 23,684 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 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
MitigationThird Party Advisory