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Fencer Vulns
high 7.8

CVE-2018-4243 in the critical feed json

An issue was discovered in certain Apple products.

published 2018-06-08 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16029

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
18.2%
EPSS 18.2% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "Kernel" component. A buffer overflow in getvolattrlist allows attackers to execute arbitrary code in a privileged context via a crafted app.

Patch / fix

  • apple apple_tv 11.4
  • apple iphone_os 11.4
  • apple mac_os_x 10.13.5
  • apple watchos 4.3.1

Timeline

  1. First public exploit (EDB-44848)
  2. Published

Exploit prediction

18.19% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-44848 Apple macOS/iOS Kernel - Heap Overflow Due to Lack of Lower Size Check in getvolattrlist dos, 2018-06-06
  • bugs.chromium.org https://bugs.chromium.org/p/project-zero/issues/detail?id=1564 referenced PoC, tagged "exploit" by a source, unverified

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.