High severity · published Dec 15, 2025
CVE-2025-13823
Micro820®, Micro850®, Micro870® – Specialized Fuzzing Vulnerabilities
7.1
CVSS
0.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MM
Micro820®, Micro850®, Micro870® · Rockwell Automation
V23.011 · source: vendor
Affected product
MM
Micro820®, Micro850®, Micro870®
Rockwell Automation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13823
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13823
www.rockwellautomation.com
https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1766.html
More from Micro820®, Micro850®, Micro870®
8.7
CVE-2025-13824
Micro820®, Micro850®, Micro870® – Specialized Fuzzing Vulnerabilities