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CVE-2016-7584 Apple CVE debrief

CVE-2016-7584 is a high-severity Apple code-signing integrity issue affecting multiple Apple operating systems. The vulnerability is described as affecting the AppleMobileFileIntegrity component and allowing spoofing of signed code by using a matching team ID. The supplied record ties the issue to iOS, macOS, tvOS, and watchOS versions prior to the fixed releases noted in the CVE description, with NVD also listing vulnerable CPE ranges for each platform.

Vendor
Apple
Product
CVE-2016-7584
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-20
Original CVE updated
2026-05-13
Advisory published
2017-02-20
Advisory updated
2026-05-13

Who should care

Apple device administrators, endpoint security teams, mobile device management operators, and anyone responsible for patching legacy iOS, macOS, tvOS, or watchOS fleets should care. Security teams that rely on Apple code-signing trust for application control or integrity enforcement should prioritize review.

Technical summary

The CVE description identifies a flaw in AppleMobileFileIntegrity that could let an attacker spoof signed code when a team ID matches. The NVD record assigns CVSS 3.0 score 7.8 (HIGH) with vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H and CWE-254. The supplied description says remote attackers could be involved, while the NVD vector indicates local attack conditions with user interaction; both are recorded here as provided. The record lists affected Apple OS versions prior to iOS 10.1, macOS 10.12.1, tvOS 10.0.1, and watchOS 3.1, and the NVD CPE criteria enumerate vulnerable builds through iOS 10.0.3, macOS 10.12.0, tvOS 10.0, and watchOS 2.2.2.

Defensive priority

High. This issue affects a core code-signing trust component and is scored HIGH by NVD. Even without exploit details, any flaw that can spoof signed code warrants prompt patch verification across Apple platforms.

Recommended defensive actions

  • Verify affected Apple devices are updated to the fixed releases identified in the CVE description and Apple advisories.
  • Prioritize iOS, macOS, tvOS, and watchOS fleets still on legacy versions named in the record.
  • Review application-control and code-signing assumptions on Apple endpoints, especially where team ID-based trust is used.
  • Use the linked Apple vendor advisories to confirm exact remediation builds for each platform.
  • Check asset inventories for devices that may not receive updates automatically and require manual remediation.

Evidence notes

All statements are derived from the supplied NVD record and the references embedded in it. The NVD metadata lists Apple vendor advisories at support.apple.com/HT207269, HT207270, HT207271, and HT207275, plus a SecurityFocus entry. The record contains a description/vs/CVSS attack-vector inconsistency: the prose says remote attackers, while the CVSS vector is AV:L with UI:R. The affected-version details also differ between the CVE description and the CPE end-version values, so both are reflected explicitly rather than normalized.

Official resources

Publicly disclosed on 2017-02-20 per the supplied CVE published date. The record was last modified on 2026-05-13. No KEV listing is indicated in the supplied data.