Input validation error in Siemens products - CVE-2026-63350

Vulnerability identifier: #VU155860

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-63350

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the affected devices do not properly restrict executable content contained in imported trace files. A remote attacker can trick a victim to import a specially crafted trace file and execute arbitrary code on the system.

SIPLUS ET 200SP CPU 1510SP-1 PN RAIL
SIPLUS S7-1500 CPU 1515F-2 PN RAIL
SIPLUS S7-1500 CPU 1515F-2 PN
SIPLUS S7-1500 CPU 1513F-1 PN
SIPLUS S7-1500 CPU 1513-1 PN
SIPLUS S7-1500 CPU 1511F-1 PN
SIPLUS S7-1500 CPU 1511-1 PN TX RAIL
SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL
SIPLUS S7-1500 CPU 1511-1 PN
SIPLUS ET 200SP CPU 1512SP-1 PN RAIL
SIPLUS ET 200SP CPU 1512SP-1 PN
SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL
SIPLUS ET 200SP CPU 1512SP F-1 PN
SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL
SIPLUS ET 200SP CPU 1510SP-1 PN
SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL
SIPLUS ET 200SP CPU 1510SP F-1 PN
SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN
SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN
SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN
SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN
SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK
SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK
SIMATIC S7-1500 CPU 1518TF-4 PN/DP
SIMATIC S7-1500 CPU 1518TF-3 PN
SIMATIC S7-1500 CPU 1518T-4 PN/DP
SIMATIC S7-1500 Software Controller Linux V2
SIMATIC S7-1500 Software Controller CPU 1508S V4
SIMATIC S7-1500 Software Controller CPU 1508S F V4
SIMATIC S7-1500 Software Controller CPU 1507S V4
SIMATIC S7-1500 Software Controller CPU 1507S F V4
SIMATIC S7-1500 Software Controller Linux V3
SIMATIC S7-1500 Software Controller CPU 1508S V3
SIMATIC S7-1500 Software Controller CPU 1508S TF V3
SIMATIC S7-1500 Software Controller CPU 1508S T V3
SIMATIC S7-1500 Software Controller CPU 1508S F V3
SIMATIC S7-1500 Software Controller CPU 1507S V3
SIMATIC S7-1500 Software Controller CPU 1507S F V3
SIMATIC S7-1500 CPU 1518T-3 PN
SIMATIC S7-1500 Software Controller CPU 1508S V2
SIMATIC S7-1500 Software Controller CPU 1508S F V2
SIMATIC S7-1500 Software Controller CPU 1507S V2
SIMATIC S7-1500 Software Controller CPU 1507S F V2
SIPLUS S7-1500 CPU 1518F-4 PN/DP
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
SIPLUS S7-1500 CPU 1518-4 PN/DP
SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL
SIPLUS S7-1500 CPU 1516F-3 PN/DP
SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL
SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL
SIPLUS S7-1500 CPU 1516-3 PN/DP
SIMATIC ET 200SP CPU 1514SPT F-2 PN
SIMATIC S7-1500 CPU 1515-2 PN
SIMATIC S7-1500 CPU 1513pro-2 PN
SIMATIC S7-1500 CPU 1513pro F-2 PN
SIMATIC S7-1500 CPU 1513F-1 PN
SIMATIC S7-1500 CPU 1513-1 PN
SIMATIC S7-1500 CPU 1512C-1 PN
SIMATIC S7-1500 CPU 1511TF-1 PN
SIMATIC S7-1500 CPU 1511T-1 PN
SIMATIC S7-1500 CPU 1511F-1 PN
SIMATIC S7-1500 CPU 1511C-1 PN
SIMATIC S7-1500 CPU 1511-1 PN
SIMATIC ET 200SP CPU 1514SPT-2 PN
SIMATIC S7-1500 CPU 1515F-2 PN
SIMATIC ET 200SP CPU 1514SP-2 PN
SIMATIC ET 200SP CPU 1514SP F-2 PN
SIMATIC ET 200SP CPU 1512SP-1 PN
SIMATIC ET 200SP CPU 1512SP F-1 PN
SIMATIC ET 200SP CPU 1510SP-1 PN
SIMATIC ET 200SP CPU 1510SP F-1 PN
SIMATIC ET 200SP Open Controller CPU 1515SP PC3 V4 CPUs
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V3 CPUs - Windows OS
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V3 CPUs - Industrial OS
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V2 CPUs - Windows OS
SIMATIC Drive Controller CPU 1507D TF
SIMATIC S7-1500 CPU 1517-3 PN/DP
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
SIMATIC S7-1500 CPU 1518F-4 PN/DP
SIMATIC S7-1500 CPU 1518F-3 PN
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
SIMATIC S7-1500 CPU 1518-4 PN/DP
SIMATIC S7-1500 CPU 1518-3 PN
SIMATIC S7-1500 CPU 1517TF-3 PN/DP
SIMATIC S7-1500 CPU 1517TF-3 PN
SIMATIC S7-1500 CPU 1517T-3 PN/DP
SIMATIC S7-1500 CPU 1517T-3 PN
SIMATIC S7-1500 CPU 1517F-3 PN/DP
SIMATIC S7-1500 CPU 1517F-3 PN
SIMATIC Drive Controller CPU 1504D TF
SIMATIC S7-1500 CPU 1517-3 PN
SIMATIC S7-1500 CPU 1516TF-3 PN/DP
SIMATIC S7-1500 CPU 1516TF-3 PN
SIMATIC S7-1500 CPU 1516T-3 PN/DP
SIMATIC S7-1500 CPU 1516T-3 PN
SIMATIC S7-1500 CPU 1516pro-2 PN
SIMATIC S7-1500 CPU 1516pro F-2 PN
SIMATIC S7-1500 CPU 1516F-3 PN/DP
SIMATIC S7-1500 CPU 1516-3 PN/DP
SIMATIC S7-1500 CPU 1515TF-2 PN
SIMATIC S7-1500 CPU 1515T-2 PN
SIMATIC S7-PLCSIM Advanced
SIMATIC ET 200SP Open Controller CPU 1515SP PC

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

• https://cert-portal.siemens.com/productcert/html/ssa-591731.html

• Multiple vulnerabilities in Siemens SIMATIC S7 PLCs