An issue was discovered in certain Apple products.

published 2017-02-20 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-8511

cvss: 7.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits: 2; Exploit-DB

An issue was discovered in certain Apple products. iOS before 10.2 is affected. macOS before 10.12.2 is affected. The issue involves the "Power Management" component. It allows local users to gain privileges via unspecified vectors related to Mach port name references.

Timeline

2016-12-16 First public exploit (EDB-40931)
2017-02-20 Published

Exploit prediction

1.11% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

EDB-40958 Apple macOS 10.12.1 / iOS < 10.2 - powerd Arbitrary Port Replacement dos, 2016-12-22
EDB-40931 Apple macOS 10.12 16A323 XNU Kernel / iOS 10.1.1 - 'set_dp_control_port' Lack of Locking Use-After-Free local, 2016-12-16

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-264 Permissions, Privileges, and Access Controls

References

exploit-db.com /exploits/40931/
exploit
exploit-db.com /exploits/40958/
exploit
support.apple.com /HT207422
vendor-advisory
support.apple.com /HT207423
vendor-advisory
securityfocus.com /bid/94906
vdb-entry, third-party-advisory
securitytracker.com /id/1037469
vdb-entry

Sources

CVE List CVE-2016-7661
NVD CVE-2016-7661

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary