CVE-2026-9653
Last modified
CVE-2026-9653 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. A denial-of-service security issue exists across all the 1756-EN2, EN3, and ENBT communication module due to improper validation of CIP Implicit Connection packets. An attacker on the network can exploit this by sending crafted packets to continuously disrupt device connections, though device connections will recover immediately after..
Description
A denial-of-service security issue exists across all the 1756-EN2, EN3, and ENBT communication module due to improper validation of CIP Implicit Connection packets. An attacker on the network can exploit this by sending crafted packets to continuously disrupt device connections, though device connections will recover immediately after.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Rockwell Automation | 1756-EN2, 1756-EN3 | 12.001 and before |
| Rockwell Automation | 1756-ENBT | 6.006 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-9653?
How severe is CVE-2026-9653?
How do I fix CVE-2026-9653?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-96514A weakness has been identified in Neethuharii CafeManagement…7.3
- CVE-2026-96515This vulnerability exists in the Netlink ICT HG323RW router …8.6
- CVE-2026-9652Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2026-96524The MCP Server for WordPress WordPress plugin before 1.8.2 …8.8
- CVE-2026-96525The MCP Server for WordPress WordPress plugin before 1.8.2 …2.7
- CVE-2026-96526The MCP Server for WordPress WordPress plugin before 1.8.2 …2.7
- CVE-2026-96531The Optimole WordPress plugin before 4.2.13 does not escape…6.8
- CVE-2026-96532The Testimonials Widget WordPress plugin through 4.0.4 does …7.5
- CVE-2026-96533The Testimonials Widget WordPress plugin through 4.0.4 does …5.8
- CVE-2026-96541A denial-of-service flaw was found in gnome-remote-desktop. …7.5
- CVE-2026-96545An out-of-bounds heap read flaw was found in GIMP's TIM imag…4.4
- CVE-2026-96546A one-byte out-of-bounds heap read flaw was found in GIMP's …2.5
Are you affected by CVE-2026-9653?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST