CVE Catalog

CVE-2026-4556

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
0.89%

58th percentile - higher than 58% of all known CVEs

Summary

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.

Risk Assessment

A local attacker can gain full control of the system with root privileges, leading to complete compromise of confidentiality, integrity, and availability of data.

Recommendation

It is recommended to immediately update Exam4 to the latest version that includes a fix for the command injection vulnerability.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS