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CVE-2020-12521

MEDIUM
Published 2020-12-17T22:43:14.654841Z
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Expert Analysis

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CVSS Score

V3.1
6.5
/10
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.256
Higher than 25.6% of all CVEs

Attack Vector Metrics

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Description

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete reboot.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Phoenix Contact

AXC F 1152 (1151412)

Affected Versions:

unspecified
Phoenix Contact

AXC F 2152 (2404267)

Affected Versions:

unspecified
Phoenix Contact

AXC F 3152 (1069208)

Affected Versions:

unspecified
Phoenix Contact

RFC 4072S (1051328

Affected Versions:

unspecified
Phoenix Contact

AXC F 2152 Starterkit (1046568)

Affected Versions:

unspecified
Phoenix Contact

PLCnext Technology Starterkit (1188165)

Affected Versions:

unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-vp46-jgwp-q8w3

Advisory Details

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete reboot.

CVSS Scoring

CVSS Score

5.0

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2020-12521
WEB https://cert.vde.com/en-us/advisories/vde-2020-049

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://cert.vde.com/en-us/advisories/vde-2020-049
Published: 2020-12-17T22:43:14.654841Z
Last Modified: 2024-09-17T04:14:26.064Z
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