4.9

CVE-2021-20163: trendnet tew-827dru_firmware Insufficiently Protected Credentials

CVSS: 4.9v3.1MediumModified
Published 30-12-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-20163 is a medium (CVSS 4.9) Insufficiently Protected Credentials vulnerability in trendnet tew-827dru_firmware. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.6% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
4.9/10
010
Medium · v3.1 (NVD)
EPSS score
0.79%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-12-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Trendnet AC2600 TEW-827DRU version 2.08B01 leaks information via the ftp web page. Usernames and passwords for all ftp users are revealed in plaintext on the ftpserver.asp page.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

0.00 pp

From 0.79% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Trendnet1 product

1 vendor · 1 product

References

1 links