CVE-2021-25845 Null dereference in n/a

High 7.5 Published 10 May 2021 Updated 3 Aug 2024

Attackers can cause a denial of service on Moxa IP cameras by sending a crafted LLDP packet that triggers a NULL pointer dereference.

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-2021-25845?

CVE-2021-25845 is a high-severity vulnerability in n/a, published on 10 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper validation of the ChassisID TLV in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V Series, version 1.1, allows attackers to cause a denial of service due to a NULL pointer dereference via a crafted lldp packet.

Weakness: CWE-476

Which versions are affected by CVE-2021-25845?

It affects 16 products.

Products include Moxa Vport 06ec-2v26m Firmware, Moxa Vport 06ec-2v36m-Ct-T Firmware, Moxa Vport 06ec-2v36m-Ct Firmware, Moxa Vport 06ec-2v36m-T Firmware, Moxa Vport 06ec-2v42m-Ct-T Firmware, Moxa Vport 06ec-2v42m-Ct Firmware and 10 more.

How do I fix CVE-2021-25845?

No fix has been published for CVE-2021-25845 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-25845 being exploited?

There is no known exploitation of CVE-2021-25845 in the wild and no public exploit code.

Sources

Also known as GHSA-27h4-m228-rwm7.