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CVE-2019-6553
CRITICAL
A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An input validation issue in a .dll file of RSLinx Classic where the data in a Forward Open service request is passed to a fixed size buffer, allowing an attacker to exploit a stack-based buffer overflow condition.
Published: Apr 4, 2019
Modified: Jun 17, 2026
CWE-121
CWE-787
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (1)
| Vendor | Product | Version |
|---|---|---|
| rockwellautomation | rslinx | * |
GitHub Security Advisory GHSA-2q9x-jr84-x65p
A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An...
References (2)
- https://ics-cert.us-cert.gov/advisories/ICSA-19-064-01 Third Party Advisory, US Government Resource
- https://ics-cert.us-cert.gov/advisories/ICSA-19-064-01 Third Party Advisory, US Government Resource
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
50.03%
Top 1% most likely to be exploited
Threat Score
54.2 / 100
Data Sources
NVD
EPSS
GitHub