What is CVE-2021-31326?

CVE-2021-31326 is a critical-severity vulnerability in Dlink Dir-816, classified under Improper Authentication. CVSS score: 9.8/10. Published 2022-03-24.

How severe is CVE-2021-31326?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Dlink Dir-816

CVE-2021-31326

D-Link DIR-816 A2 1.10 B05 allows unauthenticated attackers to arbitrarily reset the device via a crafted tokenid parameter to /goform/form2Reboot.cgi.

Vulnerability class: Broken Authentication

EPSS: 0.022 (80.4th 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-816 — versions a2
Dlink Dir-816_firmware — versions 1.10cnb05
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

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

Frequently asked questions

What is CVE-2021-31326?: CVE-2021-31326 is a critical-severity vulnerability in Dlink Dir-816, classified under Improper Authentication. CVSS score: 9.8/10. Published 2022-03-24.
How severe is CVE-2021-31326?: Critical severity. CVSS v3 base score is 9.8 out of 10.