CVE-2026-4556CWE-78command-injection

CVE-2026-4556

High · published September 28, 2026

CVSS v3.1
7.8
EPSS
1%
Percentile
59.0
In the wild
Unconfirmed
What it is

Exam4 is affected by a local privilege escalation vulnerability in the com.extegrity.LogTool privileged helper, which communicates with the application via XPC. The [ConsoleLogHelper copyConsoleIntoFileFromStartDate:] method executes a syslog command using attacker-controlled parameters without proper sanitization, enabling command injection. Successful exploitation allows a local attacker to execute arbitrary commands with root privileges through LaunchSynchronous.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00890 · 59.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-09-28T19:17Z
References (1)
EPSS history
Timeline
  • 30 SEP 03:27Z
    EPSS moved — → 1%
    epss
  • 28 SEP 14:29Z
    macOS Exam4 Local Privilege Escalation via Command Injection
    cvelistv5