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CVE-2016-1827

Published: May 20, 2016Updated: May 6, 2026 Sources: CVE List NVD BDUCWE-119
7.8HIGH
NVD MITRE
EPSS Score
5.6%
Top 7.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

The kernel in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app, a different vulnerability than CVE-2016-1828, CVE-2016-1829, and CVE-2016-1830.

In plain language

AI Worth attention

This iOS/macOS/tvOS/watchOS kernel bug could let a malicious app crash the device or possibly run code with high privileges on older versions, so you should upgrade if you’re still using those versions.

Executive summary

CVE-2016-1827 is a memory-corruption kernel vulnerability (CWE-119) in Apple iOS/OS X/macOS, tvOS, and watchOS versions prior to the fixed releases; it can be triggered via a crafted app to execute code in a privileged context or cause denial of service.

If affected, business impact
Device crashes and downtimePotential full device compromisePrivileged data exposure riskSecurity incident from malicious apps

What to do now

  1. Check which Apple OS versions your business devices are running (iPhone/iPad on iOS, Macs on macOS/OS X, Apple TV on tvOS, Apple Watch on watchOS).
  2. Update iPhone/iPad to iOS 9.3.2 or later.
  3. Update Mac computers to 10.11.5 or later.
  4. Update Apple TV to tvOS 9.2.1 or later.
  5. Update Apple Watch to watchOS 2.2.1 or later.
  6. If you cannot upgrade immediately, limit use of untrusted apps on affected devices until you can patch.
Patch / advisory Usually a quick update

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

Apple Inc.
commercial·USaka apple, apple computer
iOSEmbeddedOS
Operating Systems / mobile-os
OS X
Operating Systems
mac os xOn-premOS
Operating Systems / unix-bsd
tvosEmbeddedOS
Operating Systems / mobile-os
watchosEmbeddedOS
Operating Systems / mobile-os
and 2 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2016-1827?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://support.apple.com/HT206568
support.apple.com
https://support.apple.com/HT206567
support.apple.com
https://support.apple.com/HT206566
support.apple.com
and 14 more references View all →

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