Vulnerability Description
PBackupVSS.exe in Matrix42 Empirum before 25.5 and 26.x before 26.2 creates a named pipe (\\.\pipe\PBackupVSS) with a DACL that grants GENERIC_READ and GENERIC_WRITE permissions to all authenticated users. A low-privileged local attacker can connect to this pipe and send crafted IPC messages to trigger execution of arbitrary commands with SYSTEM privileges via an untrusted search path. This allows privilege escalation by placing a malicious shadow.exe in a controlled working directory.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://docs.matrix42.com/1041748_vulnerability-list/3862631_cve-2026-57919-priv
- https://docs.matrix42.com/en_US/1041748_vulnerability-list/cve-2026-57919-privil
- https://matrix42.com
FAQ
What is CVE-2026-57919?
CVE-2026-57919 is a vulnerability with a CVSS score of 7.8 (HIGH). PBackupVSS.exe in Matrix42 Empirum before 25.5 and 26.x before 26.2 creates a named pipe (\\.\pipe\PBackupVSS) with a DACL that grants GENERIC_READ and GENERIC_WRITE permissions to all authenticated u...
How severe is CVE-2026-57919?
CVE-2026-57919 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-57919?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.