THREAT OPS › Threat News › Siemens SIPROTEC 5 Using DIGSI5 Protocol
Siemens SIPROTEC 5 Using DIGSI5 Protocol
<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-174-02.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>SIPROTEC 5 is vulnerable to arbitrary file uploads by authenticated users using the DIGSI 5 protocol. This could allow an attacker to upload malicious configuration files, potentially causing a permanent denial of service condition. A
MITRE ATT&CK techniques
- VulnerabilitiesT1588.006
Indicators of compromise
- CVE-2025-40808cve
- https://www.cve.org/CVERecord?id=CVE-2025-40808url
- https://support.industry.siemens.com/cs/document/109768375url
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Hurl
- https://www.siemens.com/gridsecurityurl
- 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-26-174-02