CVE-2021-25849 : An integer underflow was discovered in userdisk/vport

An integer underflow was discovered in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V Series, version 1.1, improper validation of the PortID TLV leads to Denial of Service via a crafted lldp packet.

Published 2021-05-10 11:15:08

Updated 2021-05-18 20:07:26

Source MITRE

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2021-25849

Moxa » Vport 06ec-2v26m Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v26m_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v26m » Version: N/A
Moxa » Vport 06ec-2v36m-t Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v36m-t_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v36m-t » Version: N/A
Moxa » Vport 06ec-2v36m-ct Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v36m-ct_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v36m-ct » Version: N/A
Moxa » Vport 06ec-2v36m-ct-t Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v36m-ct-t_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v36m-ct-t » Version: N/A
Moxa » Vport 06ec-2v42m Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v42m_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v42m » Version: N/A
Moxa » Vport 06ec-2v42m-t Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v42m-t_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v42m-t » Version: N/A
Moxa » Vport 06ec-2v42m-ct Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v42m-ct_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v42m-ct » Version: N/A
Moxa » Vport 06ec-2v42m-ct-t Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v42m-ct-t_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v42m-ct-t » Version: N/A
Moxa » Vport 06ec-2v60m Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v60m_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v60m » Version: N/A
Moxa » Vport 06ec-2v60m-t Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v60m-t_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v60m-t » Version: N/A
Moxa » Vport 06ec-2v60m-ct Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v60m-ct_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v60m-ct » Version: N/A
Moxa » Vport 06ec-2v60m-ct-t Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v60m-ct-t_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v60m-ct-t » Version: N/A
Moxa » Vport 06ec-2v80m Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v80m_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v80m » Version: N/A
Moxa » Vport 06ec-2v80m-t Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v80m-t_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v80m-t » Version: N/A
Moxa » Vport 06ec-2v80m-ct Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v80m-ct_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v80m-ct » Version: N/A
Moxa » Vport 06ec-2v80m-ct-t Firmware
Versions up to, including, (<=) 1.1
cpe:2.3:o:moxa:vport_06ec-2v80m-ct-t_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Moxa » Vport 06ec-2v80m-ct-t » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-25849

EPSS FAQ

0.12%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 45 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-25849

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	AV:N/AC:L/Au:N/C:N/I:N/A:C	10.0	6.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-25849

CWE-191 Integer Underflow (Wrap or Wraparound)

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-25849

https://www.moxa.com/en/support/product-support/security-advisory/vport-06ec-2v-series-ip-cameras-vulnerabilities

VPort 06EC-2V Series IP Cameras Vulnerabilities
Vendor Advisory

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https://www.moxa.com/en/

Moxa - Your Trusted Partner in Automation
Vendor Advisory

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Vulnerability Details : CVE-2021-25849

Products affected by CVE-2021-25849

Exploit prediction scoring system (EPSS) score for CVE-2021-25849

CVSS scores for CVE-2021-25849

CWE ids for CVE-2021-25849

References for CVE-2021-25849