Deserialization in Siemens Simatic Pcs Neo V4.1
CVE-2024-54678
A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions < V6.0 SP1 Update 1), SIMATIC S7-PLCSIM V17 (All versions), SIMATIC STEP 7 V17 (All versions < V17 Update 9), SIMATIC STEP 7 V18 (All versions), SIMATIC STEP 7 V19 (All versions < V19 Update 4), SIMATIC STEP 7 V20 (All versions < V20 Update 4), SIMATIC WinCC V17 (All versions < V17 Update 9), SIMATIC WinCC V18 (All versions), SIMATIC WinCC V19 (All versions < V19 Update 4), SIMATIC WinCC V20 (All versions < V20 Update 4), SIMOCODE ES V17 (All versions), SIMOCODE ES V18 (All versions), SIMOCODE ES V19 (All versions), SIMOCODE ES V20 (All versions), SIMOTION SCOUT TIA V5.4 (All versions), SIMOTION SCOUT TIA V5.5 (All versions), SIMOTION SCOUT TIA V5.6 (All versions < V5.6 SP1 HF7), SIMOTION SCOUT TIA V5.7 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SINAMICS Startdrive V19 (All versions), SINAMICS Startdrive V20 (All versions), SIRIUS Safety ES V17 (TIA Portal) (All versions), SIRIUS Safety ES V18 (TIA Portal) (All versions), SIRIUS Safety ES V19 (TIA Portal) (All versions), SIRIUS Safety ES V20 (TIA Portal) (All versions), SIRIUS Soft Starter ES V17 (TIA Portal) (All versions), SIRIUS Soft Starter ES V18 (TIA Portal) (All versions), SIRIUS Soft Starter ES V19 (TIA Portal) (All versions), SIRIUS Soft Starter ES V20 (TIA Portal) (All versions), TIA Portal Cloud V17 (All versions), TIA Portal Cloud V18 (All versions), TIA Portal Cloud V19 (All versions < V5.2.1.1), TIA Portal Cloud V20 (All versions < V5.2.2.2), TIA Portal Test Suite V20 (All versions < V20 Update 4). Affected products do not properly sanitize Interprocess Communication input received through a Windows Named Pipe accessible to all local users. This could allow an authenticated local attacker to cause a type confusion and execute arbitrary code within the affected application.
Vulnerability class: Insecure Deserialization
EPSS: 0.002 (6.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Siemens Simatic Pcs Neo V4.1 — versions 0
- Siemens Simatic Pcs Neo V5.0 — versions 0
- Siemens Simatic Pcs Neo V6.0 — versions 0
- Siemens Simatic S7-plcsim V17 — versions 0
- Siemens Simatic Step 7 V17 — versions 0
- Siemens Simatic Step 7 V18 — versions 0
- Siemens Simatic Step 7 V19 — versions 0
- Siemens Simatic Step 7 V20 — versions 0
- Siemens Simatic Wincc V17 — versions 0
- Siemens Simatic Wincc V18 — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2024-54678?
- CVE-2024-54678 is a high-severity vulnerability in Siemens Simatic Pcs Neo V4.1, classified under Deserialization of Untrusted Data. CVSS score: 8.2/10. Published 2025-08-12.
- How severe is CVE-2024-54678?
- High severity. CVSS v3 base score is 8.2 out of 10.