high8.8
CVE-2025-40566
A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions < V4.1 Update 3), SIMATIC PCS neo V5.0 (All versions < V5.0 Update 1).
Impact
A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions < V4.1 Update 3), SIMATIC PCS neo V5.0 (All versions < V5.0 Update 1). Affected products do not correctly invalidate user sessions upon user logout. This could allow a remote unauthenticated attacker, who has obtained the session token by other means, to re-use a legitimate user's session even after logout.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Siemens | Simatic Pcs Neo | before 4.1 before 5.0 Versions 4.1, 5.0 |