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Fencer Vulns
high 7.8

CVE-2017-13876 json

An issue was discovered in certain Apple products.

published 2017-12-25 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-5391

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.1%
EPSS 5.1% chance of exploitation in 30 days, percentile 92%
public exploits
1
Exploit-DB

Summary

An issue was discovered in certain Apple products. iOS before 11.2 is affected. macOS before 10.13.2 is affected. tvOS before 11.2 is affected. watchOS before 4.2 is affected. The issue involves the "Kernel" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.

Patch / fix

  • apple iphone_os 11.2
  • apple mac_os_x 10.13.2
  • apple tvos 11.2
  • apple watchos 4.2

Timeline

  1. First public exploit (EDB-43325)
  2. Published

Exploit prediction

5.11% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-43325 Apple XNU Kernel - Memory Corruption due to Integer Overflow in __offsetof Usage in posix_spawn on 32-bit Platforms dos, 2017-12-12

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.