← Vulnerability feed

Vulnerability record · CVE-2026-57919 · published 29 June 2026

CVE-2026-57919: Incorrect default permissions vulnerability

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.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.5% CWE-276 · Incorrect default permissionsCWE-426 · Untrusted search path Deferred
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jul 2026Last modified by NVD

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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://docs.matrix42.com/1041748_vulnerability-list/3862631_cve-2026-57919-privilege-escalation-in-empirum-personal-bac
https://docs.matrix42.com/en_US/1041748_vulnerability-list/cve-2026-57919-privilege-escalation-in-empirum-personal-backu
https://matrix42.com

Track CVE-2026-57919 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2026-87886Acronis Backup plugins for cPanel, Plesk and DirectAdmin local privilege escalationAcronis Backup plugins for cPanel & WHM, Plesk and DirectAdmin on Linux ship with insecure file permissions (CWE-276), allowing a local user to escal…KEVEPSS 0.23%analysed6.5CVE-2022-22948VMware vCenter Server information disclosure via incorrect file permissionsvCenter Server ships files with incorrect default permissions, allowing a user with non-administrative access to read sensitive information. Because …KEVEPSS 13%analysed9.8CVE-2013-0632Adobe ColdFusion RDS default password authentication bypassAdobe ColdFusion 9.0 through 10 ships administrator.cfc with an RDS component that accepts a default empty password. An attacker can log in to RDS wi…KEVEPSS 94%analysed

Source: NIST National Vulnerability Database (record CVE-2026-57919), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.