SB2026032508 - Multiple vulnerabilities in Apple Xcode

Description

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2026-28890)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local application to perform a denial of service attack.

The vulnerability exists due to a boundary error in otool. A local application can trigger memory corruption and crash the system.

2) Improper privilege management (CVE-ID: CVE-2026-28889)

CWE-ID: CWE-269 - Improper Privilege Management

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local application to read arbitrary files on the system.

The vulnerability exists due to improper privilege management in the Simulator. A local application can read arbitrary files with root privileges. 

Remediation

Install update from vendor's website.

References

• https://support.apple.com/en-us/126801