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Fencer Vulns
high 7.8

CVE-2016-7637 json

An issue was discovered in certain Apple products.

published 2017-02-20 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-8487

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

Summary

An issue was discovered in certain Apple products. iOS before 10.2 is affected. macOS before 10.12.2 is affected. watchOS before 3.1.3 is affected. The issue involves the "Kernel" component. It allows local users to gain privileges or cause a denial of service (memory corruption) via unspecified vectors.

Timeline

  1. First public exploit (EDB-40931)
  2. Published

Exploit prediction

1.11% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-40957 Apple macOS < 10.12.2 / iOS < 10.2 - Broken Kernel Mach Port Name uref Handling Privileged Port Name Replacement Privilege Escalation local, 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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns 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.