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Fencer Vulns
high 7.0

CVE-2017-2456 json

An issue was discovered in certain Apple products.

published 2017-04-02 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-11639

cvss
7.0
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.9%
EPSS 4.9% chance of exploitation in 30 days, percentile 92%
public exploits
1
Exploit-DB

Summary

An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves the "Kernel" component. A race condition allows attackers to execute arbitrary code in a privileged context via a crafted app.

Timeline

  1. First public exploit (EDB-41778)
  2. Published

Exploit prediction

4.88% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-41778 Apple macOS/IOS 10.12.2 (16C67) - 'mach_msg' Heap Overflow dos, 2017-03-30
  • bugs.chromium.org https://bugs.chromium.org/p/project-zero/issues/detail?id=1083 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.0 CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

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.