CVE-2021-46456

Dir 823 Pro Firmware vulnerability

CVSS

9.8

EPSS

3.8%

EPSS pct

89th

Exploited

No known

D-Link device D-Link DIR-823-Pro v1.0.2 was discovered to contain a command injection vulnerability in the function SetWLanACLSettings. This vulnerability allows attackers to execute arbitrary commands via the wl(0).(0)_maclist parameter.

Affected vendor

Dlink

Affected product

Dir 823 Pro Firmware

CVSS vector

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

Weakness type (CWE)

CWE-77 — Command Injection

Published

2022-02-04

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2021-46456

Confirm whether Dlink Dir 823 Pro Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-46456.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-46456

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