PatchSiren cyber security CVE debrief

CVE-2024-26275 Siemens CVE debrief

CVE-2024-26275 is a high-severity out-of-bounds read vulnerability in Siemens JT2Go and Teamcenter Visualization products. The flaw occurs when parsing specially crafted X_T (Parasolid) files, allowing an attacker to execute arbitrary code in the context of the current process. Published on June 11, 2024, and last modified on August 13, 2024, this vulnerability affects four product variants: JT2Go, Teamcenter Visualization V14.2, V14.3, and V2312. The CVSS 3.1 score of 7.8 reflects high impacts to confidentiality, integrity, and availability, with a local attack vector requiring user interaction. Siemens has released specific patched versions for each affected product line, and CISA has issued advisory ICSA-24-165-08 to coordinate disclosure.

Vendor: Siemens
Product: JT2Go
CVSS: HIGH 7.8
CISA KEV: Not listed in stored evidence
Original CVE published: 2024-04-09
Original CVE updated: 2024-04-09
Advisory published: 2024-04-09
Advisory updated: 2024-04-09

Who should care

Organizations using Siemens JT2Go or Teamcenter Visualization for engineering design review, manufacturing planning, or supply chain collaboration should prioritize patching. This vulnerability is particularly relevant to industrial and manufacturing environments where X_T files are routinely exchanged between organizations and opened for visualization purposes. Security teams in OT/ICS environments should coordinate with engineering departments to ensure patch deployment without disrupting critical design workflows.

Technical summary

The vulnerability stems from an out-of-bounds read past the end of an allocated structure during parsing of X_T (Parasolid text format) files in Siemens visualization software. When a malformed X_T file is opened, the application reads beyond allocated memory boundaries, potentially corrupting process state and enabling arbitrary code execution within the current process context. The attack requires local access and user interaction (opening a malicious file), with no privileges required. This is a classic memory safety defect in a complex file format parser commonly found in CAD/CAM visualization tools.

Defensive priority

HIGH

Recommended defensive actions

Apply vendor patches: Update JT2Go to V2312.0004 or later; update Teamcenter Visualization V14.2 to V14.2.0.12 or later; update V14.3 to V14.3.0.9 or later; update V2312 to V2312.0004 or later
Implement file handling controls: Do not open untrusted X_T files in affected applications
Follow CISA ICS recommended practices for defense-in-depth strategies
Monitor Siemens ProductCERT security advisories for additional updates

Evidence notes

Vulnerability confirmed through Siemens ProductCERT security advisory SSA-771940 and CISA CSAF advisory ICSA-24-165-08. Out-of-bounds read occurs during X_T file parsing in affected visualization applications.

Official resources

Coordinated disclosure via CISA ICS advisory ICSA-24-165-08 and Siemens ProductCERT