Phoenix Contact PLCnext prior 2021.0 LTS LLDP Packet denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

A vulnerability was found in Phoenix Contact PLCnext. It has been rated as problematic. This issue affects an unknown functionality of the component LLDP Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was disclosed 12/18/2020 as vde-2020-049. The advisory is shared at cert.vde.com. The identification of this vulnerability is CVE-2020-12521. Neither technical details nor an exploit are publicly available.

Upgrading to version 2021.0 LTS eliminates this vulnerability.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PLCnext 2021.0 LTS

Timelineinfo

12/18/2020 🔍
12/18/2020 +0 days 🔍
12/18/2020 +0 days 🔍

Sourcesinfo

Advisory: vde-2020-049
Status: Confirmed

CVE: CVE-2020-12521 (🔍)

Entryinfo

Created: 12/18/2020 06:39
Changes: 12/18/2020 06:39 (38)
Complete: 🔍

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