CVE-2025-13823

CVE-2025-13823 is a high-severity vulnerability with a CVSS 4.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

A security issue was found in the IPv6 stack in the Micro850 and Micro870 controllers when the controllers received multiple malformed packets during fuzzing. The controllers will go into recoverable fault with fault code 0xFE60. To recover the controller, clear the fault.

Frequently asked questions

What is CVE-2025-13823?
A security issue was found in the IPv6 stack in the Micro850 and Micro870 controllers when the controllers received multiple malformed packets during fuzzing. The controllers will go into recoverable fault with fault code 0xFE60. To recover the controller, clear the fault.
How severe is CVE-2025-13823?
CVE-2025-13823 has a CVSS 4.0 base score of 7.1, rated high severity.
Is CVE-2025-13823 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-13823?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-13823 have an EU (EUVD) identifier?
Yes. CVE-2025-13823 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203386.
When was CVE-2025-13823 published?
CVE-2025-13823 was published on 2025-12-15 and last updated on 2026-06-17.

References