CVE-2021-25846: Integer Underflow
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 negative number passed to the memcpy function via a crafted lldp packet.
Credit: cve@mitre.org
| Affected Software | Affected Version | How 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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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-25846?
CVE-2021-25846 has been classified as a high severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2021-25846?
To fix CVE-2021-25846, update to the latest firmware version available for the affected Moxa VPort 06EC-2V Series cameras.
What devices are affected by CVE-2021-25846?
CVE-2021-25846 affects Moxa VPort 06EC-2V Series cameras running firmware version 1.1 or earlier.
Can CVE-2021-25846 lead to unauthorized access?
CVE-2021-25846 does not lead to unauthorized access but can cause a denial of service which disrupts normal operation.
What type of attack exploits CVE-2021-25846?
CVE-2021-25846 can be exploited through a crafted LLDP packet that triggers a negative value in the memcpy function.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/severity
- agent/last-modified-date
- agent/weakness
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/moxa
- canonical/moxa vport 06ec-2v26m
- version/moxa vport 06ec-2v26m/1.1
- canonical/moxa vport 06ec-2v36m-t firmware
- version/moxa vport 06ec-2v36m-t firmware/1.1
- canonical/moxa vport 06ec-2v36m-ct-t firmware
- version/moxa vport 06ec-2v36m-ct-t firmware/1.1
- canonical/moxa vport 06ec-2v42m firmware
- version/moxa vport 06ec-2v42m firmware/1.1
- canonical/moxa vport 06ec-2v42m-t firmware
- version/moxa vport 06ec-2v42m-t firmware/1.1
- canonical/moxa vport 06ec-2v42m-ct-t firmware
- version/moxa vport 06ec-2v42m-ct-t firmware/1.1
- canonical/moxa vport 06ec-2v42m-ct
- canonical/moxa vport 06ec-2v60m-t firmware
- version/moxa vport 06ec-2v60m-t firmware/1.1
- canonical/moxa vport 06ec-2v60m-ct-t
- version/moxa vport 06ec-2v60m-ct-t/1.1
- canonical/moxa vport 06ec-2v60m-ct firmware
- version/moxa vport 06ec-2v60m-ct firmware/1.1
- canonical/moxa vport 06ec-2v60m-ct-t firmware
- canonical/moxa vport 06ec-2v80m-t firmware
- version/moxa vport 06ec-2v80m-t firmware/1.1
- canonical/moxa vport 06ec-2v80m firmware
- version/moxa vport 06ec-2v80m firmware/1.1
- canonical/moxa vport 06ec-2v80m-ct-t
- version/moxa vport 06ec-2v80m-ct-t/1.1
- canonical/moxa vport 06ec-2v80m-ct-t firmware