Vulnerability Details CVE-2020-24685
An unauthenticated specially crafted packet sent by an attacker over the network will cause a denial-of-service (DoS) vulnerability. Vulnerability allows attacker to stop the PLC. After stopping (ERR LED flashing red), physical access to the PLC is required in order to restart the application. This issue affects: ABB AC500 V2 products with onboard Ethernet version 2.8.4 and prior versions.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.01
EPSS Ranking 76.7%
CVSS Severity
CVSS v3 Score 8.6
CVSS v2 Score 5.0
References
Products affected by CVE-2020-24685
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cpe:2.3:h:abb:pm573-eth:2.0
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cpe:2.3:h:abb:pm583-eth:2.0
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cpe:2.3:o:abb:ac500_cpu_firmware:-
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cpe:2.3:o:abb:ac500_cpu_firmware:2.0.0
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cpe:2.3:o:abb:ac500_cpu_firmware:2.3.2
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cpe:2.3:o:abb:ac500_cpu_firmware:2.4.2
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cpe:2.3:o:abb:ac500_cpu_firmware:2.4.4
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cpe:2.3:o:abb:ac500_cpu_firmware:2.5.2
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cpe:2.3:o:abb:ac500_cpu_firmware:2.5.3
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cpe:2.3:o:abb:ac500_cpu_firmware:2.6.0
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cpe:2.3:o:abb:ac500_cpu_firmware:2.7.0
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cpe:2.3:o:abb:ac500_cpu_firmware:2.7.2
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cpe:2.3:o:abb:ac500_cpu_firmware:2.8.4