CVE-2026-11958 ANSSI CVE debrief

Who should care

System administrators, security teams, and users of ANSSI's DFIR-ORC, versions 10.2.7 and prior, should be aware of this vulnerability and take necessary actions to prevent exploitation.

Technical summary

The vulnerability exists due to the way DFIR-ORC loads DLLs from a shared temporary directory. An attacker can place a malicious DLL in the C:WindowsTemp directory, which can be loaded automatically when the application is executed with administrative privileges. This allows the attacker to gain administrator privileges on the affected machine. The vulnerability has been assigned a CVSS score of 7.3 and is considered high severity.

Defensive priority

High

Recommended defensive actions

• Update DFIR-ORC to version 10.3.0 or later
• Use secure temporary directories for DFIR-ORC execution
• Restrict access to the C:WindowsTemp directory
• Implement strict access controls for DFIR-ORC execution
• Monitor system logs for suspicious activity
• Use antivirus software to detect and prevent malicious DLLs
• Regularly review and update system configurations

Evidence notes

The vulnerability was reported by Incibe and is publicly disclosed. The CVE record and NVD details are available for reference. [ref-4] and [ref-5] provide additional information on the vulnerability and mitigation.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.