CVE-2020-13573

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-01-07 · updated 2026-06-17
Weakness: CWE-823

Description

A denial-of-service vulnerability exists in the Ethernet/IP server functionality of Rockwell Automation RSLinx Classic 2.57.00.14 CPR 9 SR 3. A specially crafted network request can lead to a denial of service. An attacker can send a sequence of malicious packets to trigger this vulnerability.

Affected products

Rockwell Automation RSLinx Classic®: 2.57.00.14-cpr9_sr3

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1184
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1184

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