Is CVE-2022-22991 actively exploited?

No active exploitation of CVE-2022-22991 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-22991 be exploited remotely?

Partially. CVE-2022-22991 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2022-22991?

CVE-2022-22991 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2022-22991

CWE-78Published: January 13, 2022· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2022-22991 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

westerndigital11 product(s)

my cloud osmy cloudmy cloud dl2100my cloud dl4100my cloud ex2 ultramy cloud ex2100my cloud ex4100my cloud mirror gen 2my cloud pr2100my cloud pr4100wd cloud

Source: NVD CPE · 11 total CPE entries