9.8

CVE-2021-36224: westerndigital my_cloud_os Use of Hard-coded Credentials

CVSS: 9.8v3.1CriticalModified
Published 06-02-2023Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-36224 is a critical (CVSS 9.8) Use of Hard-coded Credentials vulnerability in westerndigital my_cloud_os. EPSS estimates a 1.19% chance of exploitation in the next 30 days, higher than 67.3% of scored vulnerabilities. 3 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits3github, reference

Timeline

  1. 06-02-2023
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Western Digital My Cloud devices before OS5 have a nobody account with a blank password.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.19%

Chance of exploitation in the next 30 days

Percentile

67%

Versus all other CVEs

30-day change

0.00 pp

From 1.19% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

3 found
  • githubUnverified

    Poc

    Maturity: poc

  • referenceUnverified

    Exploit Reference (krebsonsecurity.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (youtube.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Westerndigital1 product

1 vendor · 1 product

References

3 links