THREAT OPS › Threat News › Rockwell Automation RSLinx Classic
Rockwell Automation RSLinx Classic
<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-244-01.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition on the affected product.</strong></p> <p>The following versions of Rockwell Automation RSLinx Classic are affected:</p> <u
MITRE ATT&CK techniques
Indicators of compromise
- CVE-2026-9621cve
- CVE-2026-9622cve
- CVE-2026-9624cve
- CVE-2026-9625cve
- https://www.cve.org/CVERecord?id=CVE-2026-9621url
- https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlighturl
- https://www.rockwellautomation.com/en-us/trust-center/security-advisories.htmlurl
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hurl
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Hurl
- https://www.cve.org/CVERecord?id=CVE-2026-9622url
- https://www.cve.org/CVERecord?id=CVE-2026-9624url
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hurl
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nurl
- https://www.cve.org/CVERecord?id=CVE-2026-9625url
Original source: https://www.cisa.gov/news-events/ics-advisories/icsa-26-244-01
Same event, other sources
- Rockwell Automation RSLinx Classiccisa_advisories · 2026-09-01