7.5
CWE
476
Advisory Published
Updated

CVE-2021-25845: Null Pointer Dereference

First published: Mon May 10 2021(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Moxa VPort 06EC-2V26M=1.1
Moxa VPort 06EC-2V26M
Moxa Vport 06ec-2v36m-t Firmware=1.1
Moxa Vport 06ec-2v36m-t Firmware
Moxa Vport 06ec-2v36m-ct-t Firmware=1.1
Moxa Vport 06ec-2v36m-ct-t Firmware
Moxa Vport 06ec-2v36m-ct-t Firmware=1.1
Moxa Vport 06ec-2v36m-ct-t Firmware
Moxa Vport 06ec-2v42m Firmware=1.1
Moxa Vport 06ec-2v42m Firmware
Moxa Vport 06ec-2v42m-t Firmware=1.1
Moxa Vport 06ec-2v42m-t Firmware
Moxa Vport 06ec-2v42m-ct-t Firmware=1.1
Moxa VPort 06EC-2V42M-CT
Moxa Vport 06ec-2v42m-t Firmware=1.1
Moxa Vport 06ec-2v42m-ct-t Firmware
Moxa Vport 06ec-2v60m-t Firmware=1.1
Moxa Vport 06ec-2v60m-t Firmware
Moxa Vport 06ec-2v60m-t Firmware=1.1
Moxa Vport 06ec-2v60m-t Firmware
Moxa Vport 06ec-2v60m-ct-t=1.1
Moxa Vport 06ec-2v60m-ct-t
Moxa Vport 06ec-2v60m-ct Firmware=1.1
Moxa VPort 06EC-2V60M-CT-T Firmware
Moxa Vport 06ec-2v80m-t Firmware=1.1
Moxa Vport 06ec-2v80m-t Firmware
Moxa Vport 06ec-2v80m-t Firmware=1.1
Moxa Vport 06ec-2v80m-t Firmware
Moxa Vport 06ec-2v80m Firmware=1.1
Moxa Vport 06ec-2v80m Firmware
Moxa Vport 06ec-2v80m-ct-t=1.1
Moxa Vport 06ec-2v80m-ct-t Firmware

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Frequently Asked Questions

  • What is the severity of CVE-2021-25845?

    CVE-2021-25845 has been assigned a CVSS severity score of medium due to its potential to cause denial of service.

  • How do I fix CVE-2021-25845?

    To mitigate CVE-2021-25845, update the firmware of affected Moxa VPort 06EC-2V Series devices to the latest version provided by Moxa.

  • What devices are affected by CVE-2021-25845?

    CVE-2021-25845 specifically affects Moxa VPort 06EC-2V Series devices running firmware version 1.1.

  • What type of attacks can exploit CVE-2021-25845?

    CVE-2021-25845 can be exploited by sending crafted LLDP packets that cause a NULL pointer dereference.

  • What are the consequences of CVE-2021-25845 exploitation?

    Exploitation of CVE-2021-25845 can lead to a denial of service condition, impacting the availability of the device.

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