What’s Vulnerable › Vulnerabilities

CVE-2025-57882: AutomationDirect CLICK PLUS Improper Resource Shutdown or Release

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-23 · updated 2026-10-18
• Weakness: CWE-404

Description

An improper resource shutdown or release vulnerability has been identified in the Click Plus C2-03CPU-2 device running firmware version 3.60. The vulnerability allows an unauthenticated attacker to perform a denial-of-service attack by exhausting all available device sessions in the Remote PLC application.

Affected products

• AutomationDirect CLICK PLUS C0-0x CPU firmware: before v3.71 — fixed in v3.71
• AutomationDirect CLICK PLUS C0-1x CPU firmware: before v3.71 — fixed in v3.71
• AutomationDirect CLICK PLUS C2-x CPU firmware: before v3.71 — fixed in v3.71

How to fix

Upgrade to a fixed version: AutomationDirect CLICK PLUS C0-0x CPU firmware v3.71; AutomationDirect CLICK PLUS C0-1x CPU firmware v3.71; AutomationDirect CLICK PLUS C2-x CPU firmware v3.71. Check the vendor advisory for mitigations.

References

• https://www.automationdirect.com/support/software-downloads
• https://www.cisa.gov/news-events/ics-advisories/icsa-25-266-01

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