Improper Input Validation in Siemens Trace Products
CVE-2026-63351

5.3MEDIUM

Key Information:

Vendor

Siemens
Status
Simatic Drive Controller Cpu 1504d Tf
Simatic Drive Controller Cpu 1507d Tf
Simatic Et 200sp Cpu 1510sp F-1 Pn
Simatic Et 200sp Cpu 1510sp-1 Pn
Vendor
CVE Published:
13 October 2026

What is CVE-2026-63351?

Certain Siemens Trace products fail to properly validate and sanitize visual properties of calculated signals from imported CSV trace files. This vulnerability can be exploited by an attacker who social engineers an authorized user with the “Read diagnostics” function right into importing a malicious trace file. If successful, the attacker could execute JavaScript within the user's browser session, allowing unauthorized PLC operations through the web server within the user’s permissions.

Affected Version(s)

SIMATIC Drive Controller CPU 1504D TF 0

SIMATIC Drive Controller CPU 1507D TF 0

SIMATIC ET 200SP CPU 1510SP F-1 PN 0

References

https://cert-portal.siemens.com/productcert/html/ssa-5917...

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.