CVE-2026-9637

8.7 HIGH 0.4% exploit odds No fix listed Memory safety

What it is

A denial-of-service security issue exists in the affected Logix platforms listed in the table above. The security issue stems from improper validation of input length during CIP message processing. This can result in a major nonrecoverable fault (MNRF), requiring a power cycle to recover

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-09-01 14:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-09-01 20:50 UTC Last updatedMost recent change to the record

Details

Published: 2026-09-01 14:17 UTC
Last modified: 2026-09-01 20:50 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-119 · Buffer errors
Record status: Awaiting Analysis

Attack profile CVSS 4.0 · 8.7

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: None
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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References

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1792.html

NVD record · CVE.org record