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Fencer Vulns
high 7.8

CVE-2019-8605 kev in the critical feed json

A use after free issue was addressed with improved memory management.

published 2019-12-18 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-17995

cvss
7.8
version 3.1, CNA
cisa kev
Exploited
added 2022-06-27
epss
17.6%
EPSS 17.6% chance of exploitation in 30 days, percentile 97%
public exploits
2
Exploit-DB

Summary

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1. A malicious application may be able to execute arbitrary code with system privileges.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • Apple iOS iOS 12.3
  • Apple macOS macOS Mojave 10.14.5
  • Apple tvOS tvOS 12.3
  • Apple watchOS watchOS 5.2.1

Timeline

  1. First public exploit (EDB-46892)
  2. Published
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
4 y ago
Patch by
2022-07-18 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Apple, Multiple Products
CISA name
Apple Multiple Products Use-After-Free Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

17.61% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-47409 iOS < 12.4.1 - 'Jailbreak' Local Privilege Escalation local, 2019-09-23
  • EDB-46892 Apple macOS < 10.14.5 / iOS < 12.3 XNU - 'in6_pcbdetach' Stale Pointer Use-After-Free dos, 2019-05-21

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/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

Affected products

  • Apple iOS
  • Apple macOS
  • Apple tvOS
  • Apple watchOS

Classification

Weakness

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.