Advisory Details

December 17th, 2025

Siemens Simcenter Femap SLDPRT File Parsing Uninitialized Memory Remote Code Execution Vulnerability

ZDI-25-1124
ZDI-CAN-27146

CVE ID CVE-2025-40829
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Siemens
AFFECTED PRODUCTS Simcenter Femap
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Siemens Simcenter Femap. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of SDLPRT files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Siemens has issued an update to correct this vulnerability. More details can be found at:
https://cert-portal.siemens.com/productcert/html/ssa-512988.html
DISCLOSURE TIMELINE
  • 2025-08-12 - Vulnerability reported to vendor
  • 2025-12-17 - Coordinated public release of advisory
  • 2025-12-17 - Advisory Updated
CREDIT Rocco Calvi (@TecR0c) with TecSecurity
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