RCE in Dlink Dir-846

CVE-2020-21016

D-Link DIR-846 devices with firmware 100A35 allow remote attackers to execute arbitrary code as root via HNAP1/control/SetGuestWLanSettings.php.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.020 (78.8th 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-846
Dlink Dir-846_firmware — versions 100a35
N/a — versions n/a

Weakness classification (CWE)

CWE-94 — Code Injection

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-21016

References

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

Frequently asked questions

What is CVE-2020-21016?: CVE-2020-21016 is a critical-severity vulnerability in Dlink Dir-846, classified under Code Injection. CVSS score: 9.8/10. Published 2022-10-31.
How severe is CVE-2020-21016?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-21016 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.