CVE-2022-22991

Name: CVE-2022-22991
Creator: NVD / NIST
Published: 2022-01-13T21:15:08.98+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.33%

Last modified Jun 17, 2026

CVE-2022-22991 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A malicious user on the same LAN could use DNS spoofing followed by a command injection attack to trick a NAS device into loading through an unsecured HTTP call. Addressed this vulnerability by disabling checks for internet connectivity using HTTP.. EPSS estimates a 1.33% chance of exploitation in the next 30 days.

Description

A malicious user on the same LAN could use DNS spoofing followed by a command injection attack to trick a NAS device into loading through an unsecured HTTP call. Addressed this vulnerability by disabling checks for internet connectivity using HTTP.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.33%

67.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Westerndigital	My Cloud Os	< 5.19.117

References

https://www.westerndigital.com/support/product-security/wdc-22002-my-cloud-os5-firmware-5-19-117Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-077/Third Party Advisory, VDB Entry
https://www.westerndigital.com/support/product-security/wdc-22002-my-cloud-os5-firmware-5-19-117Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-077/Third Party Advisory, VDB Entry

Timeline

Published: Jan 13, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-22991?

How severe is CVE-2022-22991?

CVE-2022-22991 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.33% probability of exploitation in the next 30 days.

How do I fix CVE-2022-22991?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-22991?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST