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Fencer Vulns
high 7.8

CVE-2017-6978 json

An issue was discovered in certain Apple products.

published 2017-05-22 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16016

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.3%
EPSS 4.3% chance of exploitation in 30 days, percentile 91%
public exploits
1
Exploit-DB

Summary

An issue was discovered in certain Apple products. macOS before 10.12.5 is affected. The issue involves the "Accessibility Framework" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.

Timeline

  1. Published
  2. First public exploit (EDB-42056)

Exploit prediction

4.30% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-42056 Apple macOS - Lack of Bounds Checking in HIServices Custom CFObject Serialization Local Privilege Escalation dos, 2017-05-23

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 9.3 AV:N/AC:M/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.