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Fencer Vulns
critical 9.8

CVE-2017-2523 in the critical feed 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-2017-11706

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
11.5%
EPSS 11.5% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. macOS before 10.12.5 is affected. tvOS before 10.2.1 is affected. watchOS before 3.2.2 is affected. The issue involves the "Foundation" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via crafted data.

Patch / fix

  • apple iphone_os 10.3.2
  • apple mac_os_x 10.12.5
  • apple tvos 10.2.1
  • apple watchos 3.2.2

Timeline

  1. Published
  2. First public exploit (EDB-42050)

Exploit prediction

11.48% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-42050 Apple macOS/iOS - NSUnarchiver Heap Corruption Due to Lack of Bounds Checking in [NSBuiltinCharacterSet initWithCoder:] dos, 2017-05-23

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

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.