RCE in Dlink Dir-823g

CVE-2021-43474

An Access Control vulnerability exists in D-Link DIR-823G REVA1 1.02B05 (Lastest) via any parameter in the HNAP1 function

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.031 (86.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Dlink Dir-823g
Dlink Dir-823g_firmware — versions 1.02b05
N/a — versions n/a

Weakness classification (CWE)

CWE-77 — Command Injection

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-43474?: CVE-2021-43474 is a critical-severity vulnerability in Dlink Dir-823g, classified under Command Injection. CVSS score: 9.8/10. Published 2022-04-07.
How severe is CVE-2021-43474?: Critical severity. CVSS v3 base score is 9.8 out of 10.