Medium 4.7Published Oct 9, 2015

CVE-2015-5914The 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 cod…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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It affects apple mac_os_x. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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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.

CVSS: 4.7 MEDIUM (v2.0, NVD)AV:L/AC:M/Au:N/C:N/I:C/A:N
Weakness (CWE): CWE-17
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

apple mac_os_x apple:mac_os_x	through 10.10.5	NVD

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.