TI-2018-10651 Aliases CVE-2018-14821 GHSA-g2xj-449r-g2rx

Heap-based buffer overflow in Rockwell RSLinx Classic

MEDIUM 40CWE-122Published 2018-09-20 · Updated 2024-09-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. This vulnerability may allow a remote, unauthenticated threat actor to intentionally send a malformed CIP packet to Port 44818, causing the RSLinx Classic application to terminate. The user will need to manually restart the software to regain functionality.

Why it matters now

EPSS 0.04495 91st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Rockwell	RSLinx Classic	up to 4.00.01	—	No fix listed	CNA

RSLinx Classic VendorRockwell Affected up to 4.00.01 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:rockwellautomation:rslinx:::::classic:::*	up to 4.00.01	Vulnerable	Rockwell

cpe:2.3:a:rockwellautomation:rslinx:*:*:*:*:classic:*:*:* Versions up to 4.00.01 Vulnerable ·Rockwell

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-14821
2026-10-03 Alias added: GHSA-g2xj-449r-g2rx

References

Exploit 1

https://www.tenable.com/security/research/tra-2018-26

Advisory 1

https://ics-cert.us-cert.gov/advisories/ICSA-18-263-02

TI-2019-04607 Stack-based buffer overflow in Rockwell RSLinx Classic CVSS 3.1CRITICAL 9.8
TI-2018-10659 Stack-based buffer overflow in Rockwell RSLinx Classic CVSS 3.0CRITICAL 9.8
TI-2011-02222 Buffer overflow in RSEds.dll in RSHWare.exe in the EDS Hardware Installation Tool 1.0.5.1… CVSS 2.0HIGH 9.3
TI-2020-10651 Memory corruption in Rockwell Automation CVSS 3.1HIGH 7.5
TI-2018-10657 Uncontrolled resource consumption in Rockwell RSLinx Classic CVSS 3.0HIGH 7.5
TI-2020-09693 SQL injection in EDS Subsystem, FactoryTalk Linx software , RSLinx Classic, RSNetWorx… CVSS 3.1HIGH 8.2

See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences