CVE-2025-7693

CVE-2025-7693 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Description

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.

Frequently asked questions

What is CVE-2025-7693?
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.
How severe is CVE-2025-7693?
CVE-2025-7693 has a CVSS 4.0 base score of 9.3, rated critical severity.
Is CVE-2025-7693 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-7693?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-7693 have an EU (EUVD) identifier?
Yes. CVE-2025-7693 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25134.
When was CVE-2025-7693 published?
CVE-2025-7693 was published on 2025-08-18 and last updated on 2026-06-17.

References

Other CWE-20 (Improper Input Validation) vulnerabilities

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