Full Report
Solid Edge SE2026 before Update 5 is affected by two file parsing vulnerabilities that could be triggered when the application reads specially crafted files in PAR format. This could allow an attacker to crash the application or execute arbitrary code. Siemens has released a new version for Solid Edge SE2026 and recommends to update to the latest version.
Analysis Summary
# Vulnerability: File Parsing Vulnerabilities in Siemens Solid Edge
## CVE Details
- **CVE ID:** CVE-2026-44411, CVE-2026-44412
- **CVSS Score:**
- CVSS v3.1: 7.8 (High)
- CVSS v4.0: 7.3 (High)
- **CWE:**
- CWE-824: Access of Uninitialized Pointer (CVE-2026-44411)
- CWE-121: Stack-based Buffer Overflow (CVE-2026-44412)
## Affected Systems
- **Products:** Siemens Solid Edge SE2026
- **Versions:** All versions prior to V226.0 Update 5
- **Configurations:** Systems where the Solid Edge application is used to open or process PAR (Part) files.
## Vulnerability Description
The vulnerabilities exist within the file parsing engine of Solid Edge SE2026.
- **CVE-2026-44411:** Occurs due to the access of an uninitialized pointer when processing specially crafted PAR files. This memory corruption flaw can lead to arbitrary code execution.
- **CVE-2026-44412:** A stack-based buffer overflow flaw triggered during the parsing of malformed PAR files. An attacker can use this to overwrite sensitive memory, potentially leading to a crash or full process takeover.
## Exploitation
- **Status:** Not exploited (Reported via coordinated disclosure by Michael Heinzl)
- **Complexity:** Low (CVSS v3.1) / High (CVSS v4.0 implies specific requirements for successful memory corruption exploitation)
- **Attack Vector:** Local (Requires a user to open a malicious file)
- **User Interaction:** Required (The victim must manually open the "specially crafted" PAR file)
## Impact
- **Confidentiality:** High (Full access to process memory and data)
- **Integrity:** High (Potential for arbitrary code execution)
- **Availability:** High (Application crash or process termination)
## Remediation
### Patches
- **Solid Edge SE2026:** Update to version **V226.0 Update 5** or later.
### Workarounds
- Siemens has not provided specific technical workarounds; however, standard security hygiene applies:
- Do not open PAR files from untrusted or unknown sources.
- Implement the principle of least privilege for users operating CAD software.
## Detection
- **Indicators of compromise:** Unusual application crashes when opening PAR files; unexpected network activity originating from the `Edge.exe` process (if code execution is successful).
- **Detection methods and tools:** Use of Endpoint Detection and Response (EDR) tools to monitor for abnormal memory operations or sub-process spawning from the Solid Edge application.
## References
- **Vendor Advisory:** hxxps://cert-portal[.]siemens[.]com/productcert/html/ssa-921111[.]html
- **Support Portal:** hxxps://support[.]sw[.]siemens[.]com/product/246738425/
- **Siemens Industrial Security Guidelines:** hxxps://www[.]siemens[.]com/cert/operational-guidelines-industrial-security