CVE-2020-26887 Security feature bypass in n/a

High 7.8 Published Updated

Attackers can bypass DNS Rebinding protection on FRITZ!Box devices, potentially exposing internal network services.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-26887?

CVE-2020-26887 is a high-severity vulnerability in n/a, published on 23 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

FRITZ!OS before 7.21 on FRITZ!Box devices allows a bypass of a DNS Rebinding protection mechanism.

Which versions are affected by CVE-2020-26887?

It affects 1 product.

Products include Avm Fritz\!box 7490 Firmware.

How do I fix CVE-2020-26887?

No fix has been published for CVE-2020-26887 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-26887 being exploited?

There is no known exploitation of CVE-2020-26887 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-fx9w-88ff-gqvq.

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