CVE-2026-4556

macOS Exam4 Local Privilege Escalation via Command Injection

HIGH
7.8
CVSS Score
Published: September 28, 2026 at 02:29 PM UTC
Updated: September 29, 2026 at 09:27 PM UTC
1 product affected across 1 vendorExam4

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Severity
HIGH7.8
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 25.12.28.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHPentraze
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-78

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