CVE-2018-4251

5.5 mediumEPSS 1.2%

Medium (5.5) in apple mac os x. EPSS 1.2% chance of exploitation in the next 30 days.

An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the "Firmware" component. It allows attackers to modify the EFI flash-memory region that a crafted app that has root access.

Severity

CVSS 3.0

5.5 medium

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)
CWE: CWE-732
Published: 2018-06-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apple:mac_os_x

References

http://seclists.org/fulldisclosure/2019/Mar/45
http://www.securitytracker.com/id/1041027
https://support.apple.com/HT208849
http://seclists.org/fulldisclosure/2019/Mar/45
http://www.securitytracker.com/id/1041027

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