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Fencer Intel
medium 6.5

CVE-2016-4708 json

CFNetwork in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3 misparses the Set-Cookie header, which allows rem…

published 2016-09-25 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-5693

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

CFNetwork in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3 misparses the Set-Cookie header, which allows remote attackers to obtain sensitive information via a crafted HTTP response.

Patch / fix

  • apple iphone_os 10.0
  • apple mac_os_x 10.12.0
  • apple tvos 10.0
  • apple watchos 3.0

Exploit prediction

3.90% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel 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.