CVE-2021-25846
Improper validation of the ChassisID TLV in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-25846- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-191
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-25846- Updated
- 2026-11-02
EUVDEUVD-2021-12727 No score
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.
- Record
EUVD-2021-12727- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-g8ph-56pg-h88p No score
Improper validation of the ChassisID TLV in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V...
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.
- Record
GHSA-g8ph-56pg-h88p- Weakness
- CWE-191
- Updated
- 2026-11-02
Affected products
- 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
- moxa vport 06ec-2v42m-t firmware
- moxa vport 06ec-2v42m firmware
- moxa vport 06ec-2v60m-ct-t firmware
- moxa vport 06ec-2v60m-ct firmware
- moxa vport 06ec-2v60m-t firmware
- moxa vport 06ec-2v60m firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-25846 is a high vulnerability (CVSS 7.5) in Moxa Vport 06ec-2v26m Firmware, published May 10, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.05%, the 64th percentile. No source names a fixed version.