CVE-2021-31326 Auth bypass in n/a

Critical 9.8 Published Updated

Unauthenticated attackers can reset the D-Link DIR-816 router by sending a crafted tokenid parameter, causing a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-31326?

CVE-2021-31326 is a critical authentication bypass vulnerability in Dlink Dir-816 Firmware, published on 23 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-287

Which versions are affected by CVE-2021-31326?

It affects 1 product.

Products include Dlink Dir-816 Firmware.

How do I fix CVE-2021-31326?

No fix has been published for CVE-2021-31326 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-31326 being exploited?

There is no known exploitation of CVE-2021-31326 in the wild and no public exploit code.

All Dlink Dir-816 Firmware vulnerabilities

Sources

Also known as GHSA-frrx-wmgx-653x.

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