Siemens SCALANCE, SIMATIC gear hit by CVE-2025-15467
Siemens issued advisory CERTFR-2026-AVI-0714 covering CVE-2025-15467, CVE-2026-24349, and CVE-2025-40808 affecting SCALANCE switches, SIMATIC HMI/WinCC systems, and SIPROTEC 5 devices—many without patches.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 3 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
The French ANSSI published a security advisory documenting vulnerabilities in a broad range of Siemens industrial automation and networking equipment. CVE-2025-15467 affects dozens of SCALANCE switch families (LPE, M-series routers, XC/XF/XR-series switches), SIMATIC HMI panels, WinCC SCADA platforms, machine-vision products, and various IPC/IOT devices. CVE-2026-24349 impacts SIMATIC WinCC Unified PC Runtime versions 16 through 20. CVE-2025-40808 is specific to SIPROTEC 5 protection relays across CP100/CP150/CP200/CP300 variants. Risks include confidentiality breach, remote denial of service, and remote code execution.
Siemens has indicated that numerous affected products—particularly SCALANCE LPE9413/LPE9433, legacy WinCC V7.5/V8.0/V8.1, WinCC Unified PC Runtime V16–V20, and many SIPROTEC 5 CP100/CP200 models—will not receive security patches. Updates are available for SIMATIC HMI Basic/Comfort/Mobile Panels (update to ≥17.0.9), SIMATIC STEP 7 V5 (≥5.7.4), WinCC OA (3.19.024, 3.20.012, 3.21.02), WinCC Runtime Advanced V17 (≥17.0.9), WinCC Unified PC Runtime V21 (≥21.0.2), and WinCC Unified Sequence (≥21). Operators of affected infrastructure should review the CERT-FR bulletin for product-specific guidance and plan compensating controls where patches are unavailable.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0714
Free public brief. Slack alerts on the vendors you run come with the paid plans, and a new account gets three days of them, no card.
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries live profiles of the CVEs it names. The paid plans add the security research and news reporting the free tier leaves out.
It sits in a corpus of 16,445 reports from 149 sources, 666 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Slack alerts are a paid-plan feature: name the vendors you run and Slack hears about the reports that touch them, not the rest of the week's. Nothing is charged unless you subscribe.
Create a free account What it costs