CVE-2025-40594

critical

A vulnerability has been identified in SINAMICS G220 V6.4 (All versions < V6.4 HF2), SINAMICS S200 V6.4 (All versions < V6.4 HF7), SINAMICS S210 V6.4 (All vers…

Vendor / product: Siemens — sinamics g220 firmware

A vulnerability has been identified in SINAMICS G220 V6.4 (All versions < V6.4 HF2), SINAMICS S200 V6.4 (All versions < V6.4 HF7), SINAMICS S210 V6.4 (All versions < V6.4 HF2). The affected devices allow a factory reset to be executed without the required privileges due to improper privilege management as well as manipulation of configuration data because of leaked privileges of previous sessions. This could allow an unauthorized attacker to escalate their privileges.

CVSS

9.8

9.8 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2025-09-09 09:15

Modified: 2026-10-23 22:10

NVD status: Modified

Last synced 2 days ago

Verified against the source API 2026-10-27 07:06 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

siemens / sinamics_g220_firmware 6.4

siemens / sinamics_s200_firmware 6.4

siemens / sinamics_s210_firmware 6.4

Weakness classification (CWE)

CWE-269 NVD-CWE-noinfo

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://cert-portal.siemens.com/productcert/html/ssa-027652.html

References

https://cert-portal.siemens.com/productcert/html/ssa-027652.html productcert@siemens.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗

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CVE-2025-40594

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Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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