THREAT OPS › Threat News › Siemens Opcenter X
Siemens Opcenter X
<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-202-03.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Opcenter X before V2604 contain an authentication bypass vulnerability that could allow an attacker to gain full unauthorized access to the application. Siemens has released a new version for Opcenter X and recommends to update to the
MITRE ATT&CK techniques
- VulnerabilitiesT1588.006
Indicators of compromise
- CVE-2026-56451cve
- https://www.cve.org/CVERecord?id=CVE-2026-56451url
- https://support.sw.siemens.com/product/206159703/url
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hurl
- https://www.siemens.com/cert/operational-guidelines-industrial-securityurl
- https://www.siemens.com/industrialsecurityurl
- https://www.siemens.com/cert/advisoriesurl
- https://www.siemens.com/productcert/terms-of-useurl
Original source: https://www.cisa.gov/news-events/ics-advisories/icsa-26-202-03
Same event, other sources
- Siemens Opcenter Xcisa_advisories · 2026-07-21