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Vulnerabilities

Vulnerability · CVE-2025-7693

A security issue exists due to improper handling of malformed CIP Forward Close packets during fuzzing.

Published Aug 18, 2025 · catalog updated Aug 18, 2025 · Rockwell Automation PLC - Micro850 L50E

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-7693. EPSS is 0.37%. Act only if a listed version of Rockwell Automation PLC - Micro850 L50E is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.37%
Remediation
Advisory link
Affected products
vendor Rockwell Automation PLC - Micro850 L50E V20.011 - V22.011

A security issue exists due to improper handling of malformed CIP Forward Close packets during fuzzing. The controller enters a solid red Fault LED state and becomes unresponsive. Upon power cycle, the controller will enter recoverable fault where the MS LED and Fault LED become flashing red and reports fault code 0xF015. To recover, clear the fault.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Rockwell Automation PLC - Micro850 L50E V20.011 - V22.011V20.011 - V22.011

How to fix CVE-2025-7693

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-7693. EPSS is 0.37%. Act only if a listed version of Rockwell Automation PLC - Micro850 L50E is installed.

Which versions are affected?

Compare what you have installed with Rockwell Automation PLC - Micro850 L50E V20.011 - V22.011 V20.011 - V22.011. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.37%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 18, 2025 · EUVD

    Detected

    A security issue exists due to improper handling of malformed CIP Forward Close packets during fuzzing. The controller enters a solid red Fault LED state and becomes unresponsive. Upon power cycle, the controller will enter recoverable fault where the MS LED and Fault LED become flashing red and reports fault code 0xF015. To recover, clear the fault.

  2. Aug 18, 2025 · EUVD

    Updated

    A security issue exists due to improper handling of malformed CIP Forward Close packets during fuzzing. The controller enters a solid red Fault LED state and becomes unresponsive. Upon power cycle, the controller will enter recoverable fault where the MS LED and Fault LED become flashing red and reports fault code 0xF015. To recover, clear the fault.

Sources

  • CVE.orgVulnerability recordCVE-2025-7693

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-7693

    30-day exploitation probability 0.37%

    first.org
  • EUVDVulnerability recordEUVD-2025-25134

    A security issue exists due to improper handling of malformed CIP Forward Close packets during fuzzing. The controller enters a solid red Fault LED state and becomes unresponsive. Upon power cycle, the controller will enter recoverable fault where the MS LED and Fault LED become

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 22, 2026
  • EUVDOct 22, 2026