CVE-2019-6553 in the critical feed json
A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior.
published 2019-04-04 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16112
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 66.3%
- EPSS 66.3% chance of exploitation in 30 days, percentile 99.2%
- public exploits
- 0
- none known
Summary
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.
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-19-064-01 updated cvss 10.0
Rockwell Automation RSLinx Classic
-
Rockwell Automation RSLinx Classic <= 4.10.00affected: vendor fix, mitigation “For more information please see the Rockwell Automation security advisory” rockwellautomation.custhelp.com
From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf
Exploit prediction
66.34% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Rockwell Automation RSLinx Classic
Classification
References
-
ics-cert.us-cert.gov
/advisories/ICSA-19-064-01
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2019-6553
- NVD CVE-2019-6553
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