CVE-2026-11958
CVE-2026-11958 is a high-severity vulnerability with a CVSS 4.0 base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-427.
Key facts
- Severity: High (CVSS 4.0 base score 7.3)
- EPSS exploit prediction: 0% (1st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-37877
- Weakness: CWE-427
- Published:
- Last modified:
Description
Local privilege escalation by loading DLLs from a shared temporary directory in ANSSI’s DFIR-ORC, versions 10.2.7 and prior. An attacker with prior access to the system, can place a malicious DLL in C:\Windows\Temp and wait for the application to be executed. Because DFIR-ORC is extracted and executed from that location with administrative privileges, the malicious library can be loaded automatically, allowing the attacker to gain administrator privileges on the affected machine.
Frequently asked questions
- What is CVE-2026-11958?
- Local privilege escalation by loading DLLs from a shared temporary directory in ANSSI’s DFIR-ORC, versions 10.2.7 and prior. An attacker with prior access to the system, can place a malicious DLL in C:\Windows\Temp and wait for the application to be executed. Because DFIR-ORC is extracted and executed from that location with administrative privileges, the malicious library can be loaded automatically, allowing the attacker to gain administrator privileges on the affected machine.
- How severe is CVE-2026-11958?
- CVE-2026-11958 has a CVSS 4.0 base score of 7.3, rated high severity.
- Is CVE-2026-11958 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-11958?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-11958 have an EU (EUVD) identifier?
- Yes. CVE-2026-11958 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37877.
- When was CVE-2026-11958 published?
- CVE-2026-11958 was published on 2026-06-18 and last updated on 2026-06-22.
References
- https://github.com/DFIR-ORC/dfir-orc/releases/tag/v10.3.0
- https://www.incibe.es/en/incibe-cert/notices/aviso/local-privilege-escalation-anssis-dfir-orc
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