What’s Vulnerable › Vulnerabilities

CVE-2015-5914

• Severity: medium (CVSS 4.7 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-10-09 · updated 2026-06-17
• Weakness: CWE-17

Description

The EFI component in Apple OS X before 10.11 allows physically proximate attackers to modify firmware during the EFI update process by inserting an Apple Ethernet Thunderbolt adapter with crafted code in an Option ROM, aka a "Thunderstrike" issue. NOTE: this issue exists because of an incomplete fix for CVE-2014-4498.

Affected products

• macOS: through 10.10.5

References

• http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
• http://www.securitytracker.com/id/1033703
• https://support.apple.com/HT205267
• https://trmm.net/Thunderstrike_FAQ
• http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
• http://www.securitytracker.com/id/1033703
• https://support.apple.com/HT205267
• https://trmm.net/Thunderstrike_FAQ

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