7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
For our customers’ protection, Apple doesn’t disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.
Apple security documents reference vulnerabilities by CVE-ID when possible.
For more information about security, see the Apple Product Security page.
Released January 26, 2021
Analytics
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A remote attacker may be able to cause a denial of service
Description: This issue was addressed with improved checks.
CVE-2021-1761: Cees Elzinga
Entry added February 1, 2021
APFS
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A local user may be able to read arbitrary files
Description: The issue was addressed with improved permissions logic.
CVE-2021-1797: Thomas Tempelmann
Entry added February 1, 2021
Bluetooth
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A remote attacker may be able to cause arbitrary code execution
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2021-1794: Jianjun Dai of 360 Alpha Lab
Entry added February 1, 2021
Bluetooth
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A remote attacker may be able to cause arbitrary code execution
Description: An out-of-bounds write was addressed with improved input validation.
CVE-2021-1795: Jianjun Dai of 360 Alpha Lab
CVE-2021-1796: Jianjun Dai of 360 Alpha Lab
Entry added February 1, 2021
Bluetooth
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: An attacker in a privileged position may be able to perform a denial of service attack
Description: A memory initialization issue was addressed with improved memory handling.
CVE-2021-1780: Jianjun Dai of 360 Alpha Lab
Entry added February 1, 2021
CoreAnimation
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A malicious application could execute arbitrary code leading to compromise of user information
Description: A memory corruption issue was addressed with improved state management.
CVE-2021-1760: @S0rryMybad of 360 Vulcan Team
Entry added February 1, 2021
CoreAudio
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing maliciously crafted web content may lead to code execution
Description: An out-of-bounds write was addressed with improved input validation.
CVE-2021-1747: JunDong Xie of Ant Security Light-Year Lab
Entry added February 1, 2021
CoreGraphics
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted font file may lead to arbitrary code execution
Description: An out-of-bounds write issue was addressed with improved bounds checking.
CVE-2021-1776: Ivan Fratric of Google Project Zero
Entry added February 1, 2021
CoreMedia
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to arbitrary code execution
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2021-1759: Hou JingYi (@hjy79425575) of Qihoo 360 CERT
Entry added February 1, 2021
CoreText
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted text file may lead to arbitrary code execution
Description: A stack overflow was addressed with improved input validation.
CVE-2021-1772: Mickey Jin of Trend Micro
Entry added February 1, 2021
CoreText
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A remote attacker may be able to cause arbitrary code execution
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2021-1792: Mickey Jin & Junzhi Lu of Trend Micro
Entry added February 1, 2021
Crash Reporter
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A local user may be able to create or modify system files
Description: A logic issue was addressed with improved state management.
CVE-2021-1786: Csaba Fitzl (@theevilbit) of Offensive Security
Entry added February 1, 2021
Crash Reporter
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A local attacker may be able to elevate their privileges
Description: Multiple issues were addressed with improved logic.
CVE-2021-1787: James Hutchins
Entry added February 1, 2021
FairPlay
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A malicious application may be able to disclose kernel memory
Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation.
CVE-2021-1791: Junzhi Lu (@pwn0rz), Qi Sun & Mickey Jin of Trend Micro
Entry added February 1, 2021
FontParser
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A remote attacker may be able to cause arbitrary code execution
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2021-1758: Peter Nguyen of STAR Labs
Entry added February 1, 2021
ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to a denial of service
Description: A logic issue was addressed with improved state management.
CVE-2021-1773: Xingwei Lin of Ant Security Light-Year Lab
Entry added February 1, 2021
ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to a denial of service
Description: This issue was addressed with improved checks.
CVE-2021-1766: Danny Rosseau of Carve Systems
Entry added February 1, 2021
ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to arbitrary code execution
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2021-1785: Xingwei Lin of Ant Security Light-Year Lab
Entry added February 1, 2021
ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to arbitrary code execution
Description: An out-of-bounds write was addressed with improved input validation.
CVE-2021-1744: Xingwei Lin of Ant Security Light-Year Lab
Entry added February 1, 2021
ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution
Description: A logic issue was addressed with improved state management.
CVE-2021-1818: Xingwei Lin from Ant-Financial Light-Year Security Lab
Entry added February 1, 2021
ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to arbitrary code execution
Description: This issue was addressed with improved checks.
CVE-2021-1746: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Qi Sun of Trend Micro
CVE-2021-1793: Xingwei Lin of Ant Security Light-Year Lab
Entry added February 1, 2021
ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to arbitrary code execution
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2021-1741: Xingwei Lin of Ant Security Light-Year Lab
CVE-2021-1743: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Junzhi Lu of Trend Micro
Entry added February 1, 2021
ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to a denial of service
Description: An out-of-bounds read issue existed in the curl. This issue was addressed with improved bounds checking.
CVE-2021-1778: Xingwei Lin of Ant Security Light-Year Lab
Entry added February 1, 2021
ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to arbitrary code execution
Description: An access issue was addressed with improved memory management.
CVE-2021-1783: Xingwei Lin of Ant Security Light-Year Lab
Entry added February 1, 2021
IOSkywalkFamily
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A local attacker may be able to elevate their privileges
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2021-1757: Proteas and Pan ZhenPeng (@Peterpan0927) of Alibaba Security
Entry added February 1, 2021
iTunes Store
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted URL may lead to arbitrary javascript code execution
Description: A validation issue was addressed with improved input sanitization.
CVE-2021-1748: CodeColorist of Ant-Financial Light-Year Labs
Entry added February 1, 2021
Kernel
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A remote attacker may be able to cause a denial of service
Description: A use after free issue was addressed with improved memory management.
CVE-2021-1764: Maxime Villard (@m00nbsd)
Entry added February 1, 2021
Kernel
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: Multiple issues were addressed with improved logic.
CVE-2021-1750: @0xalsr
Entry added February 1, 2021
Kernel
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited.
Description: A race condition was addressed with improved locking.
CVE-2021-1782: an anonymous researcher
Messages
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A malicious application may be able to leak sensitive user information
Description: A privacy issue existed in the handling of Contact cards. This was addressed with improved state management.
CVE-2021-1781: Csaba Fitzl (@theevilbit) of Offensive Security
Entry added February 1, 2021
Model I/O
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution
Description: A buffer overflow was addressed with improved bounds checking.
CVE-2021-1763: Mickey Jin of Trend Micro
Entry added February 1, 2021
Model I/O
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2021-1768: Mickey Jin & Junzhi Lu of Trend Micro
Entry added February 1, 2021
Model I/O
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2021-1745: Mickey Jin & Junzhi Lu of Trend Micro
Entry added February 1, 2021
Model I/O
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution
Description: An out-of-bounds write was addressed with improved input validation.
CVE-2021-1762: Mickey Jin of Trend Micro
Entry added February 1, 2021
Model I/O
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to heap corruption
Description: This issue was addressed with improved checks.
CVE-2021-1767: Mickey Jin & Junzhi Lu of Trend Micro
Entry added February 1, 2021
Model I/O
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing a maliciously crafted image may lead to arbitrary code execution
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2021-1753: Mickey Jin of Trend Micro
Entry added February 1, 2021
Phone Keypad
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: An attacker with physical access to a device may be able to see private contact information
Description: A lock screen issue allowed access to contacts on a locked device. This issue was addressed with improved state management.
CVE-2021-1756: Ryan Pickren (ryanpickren.com)
Entry added February 1, 2021
Swift
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication
Description: A logic issue was addressed with improved validation.
CVE-2021-1769: CodeColorist of Ant-Financial Light-Year Labs
Entry added February 1, 2021
WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A use after free issue was addressed with improved memory management.
CVE-2021-1788: Francisco Alonso (@revskills)
Entry added February 1, 2021
WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A type confusion issue was addressed with improved state handling.
CVE-2021-1789: @S0rryMybad of 360 Vulcan Team
Entry added February 1, 2021
WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: Maliciously crafted web content may violate iframe sandboxing policy
Description: This issue was addressed with improved iframe sandbox enforcement.
CVE-2021-1801: Eliya Stein of Confiant
Entry added February 1, 2021
WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Description: A logic issue was addressed with improved restrictions.
CVE-2021-1871: an anonymous researcher
CVE-2021-1870: an anonymous researcher
WebRTC
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A malicious website may be able to access restricted ports on arbitrary servers
Description: A port redirection issue was addressed with additional port validation.
CVE-2021-1799: Gregory Vishnepolsky & Ben Seri of Armis Security, and Samy Kamkar
Entry added February 1, 2021
iTunes Store
We would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance.
Entry added February 1, 2021
Kernel
We would like to acknowledge Junzhi Lu (@pwn0rz), Mickey Jin & Jesse Change of Trend Micro for their assistance.
Entry added February 1, 2021
libpthread
We would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance.
Entry added February 1, 2021
We would like to acknowledge Yiğit Can YILMAZ (@yilmazcanyigit) and an anonymous researcher for their assistance.
Entry added February 1, 2021
Store Demo
We would like to acknowledge @08Tc3wBB for their assistance.
Entry added February 1, 2021
WebRTC
We would like to acknowledge Philipp Hancke for their assistance.
Entry added February 1, 2021
Wi-Fi
We would like to acknowledge an anonymous researcher for their assistance.
Entry added February 1, 2021
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C