CVE-2026-57919
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | n/a |
| Product | n/a |
| Published | Jun 29, 2026 |
| Last Updated | Jun 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
n/a / n/a
n/a