CVE-2025-40829: Siemens Simcenter Femap · Use of Uninitialized Resource
Affects Siemens Simcenter FemapSource CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 12 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Siemens Simcenter Femap | Affected
| Fixed in– |
AI-suggested
- Until Siemens releases an official patch, restrict the opening of SLDPRT files from untrusted or external sources.
- Implement strict file validation and scanning policies for CAD files entering the network, using sandboxing or specialized malware detection tools capable of analyzing CAD file formats.
- Educate users about the risks of opening unsolicited or suspicious CAD files, emphasizing the need for caution and verification.
- Employ application whitelisting and privilege restrictions to limit the execution context of Simcenter Femap, reducing the impact of potential code execution.
- Monitor system and application logs for unusual behavior indicative of exploitation attempts, such as unexpected crashes or process anomalies.
- Isolate critical engineering workstations from general-purpose networks to reduce exposure.
- Maintain up-to-date backups of engineering data to enable recovery in case of compromise.
- Engage with Siemens support channels for updates on patch availability and apply updates promptly once released.
Description
A vulnerability has been identified in Simcenter Femap (All versions < V2512). The affected applications contains an uninitialized memory vulnerability while parsing specially crafted SLDPRT files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-27146)