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Vulnerability Details :

CVE-2026-43666

Summary
Assigner-apple
Assigner Org ID-286789f9-fbc2-4510-9f9a-43facdede74c
Published At-11 May, 2026 | 20:07
Updated At-12 May, 2026 | 17:17
Rejected At-
Credits

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An attacker on the local network may be able to cause a denial-of-service.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:apple
Assigner Org ID:286789f9-fbc2-4510-9f9a-43facdede74c
Published At:11 May, 2026 | 20:07
Updated At:12 May, 2026 | 17:17
Rejected At:
â–¼CVE Numbering Authority (CNA)

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An attacker on the local network may be able to cause a denial-of-service.

Affected Products
Vendor
Apple Inc.Apple
Product
iOS and iPadOS
Versions
Affected
  • From 0 before 18.7.9 (custom)
  • From 0 before 26.5 (custom)
Vendor
Apple Inc.Apple
Product
macOS
Versions
Affected
  • From 0 before 14.8.7 (custom)
  • From 0 before 15.7.7 (custom)
  • From 0 before 26.5 (custom)
Vendor
Apple Inc.Apple
Product
tvOS
Versions
Affected
  • From 0 before 26.5 (custom)
Vendor
Apple Inc.Apple
Product
visionOS
Versions
Affected
  • From 0 before 26.5 (custom)
Vendor
Apple Inc.Apple
Product
watchOS
Versions
Affected
  • From 0 before 26.5 (custom)
Problem Types
TypeCWE IDDescription
N/AN/AAn attacker on the local network may be able to cause a denial-of-service
Type: N/A
CWE ID: N/A
Description: An attacker on the local network may be able to cause a denial-of-service
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://support.apple.com/en-us/127110
N/A
https://support.apple.com/en-us/127111
N/A
https://support.apple.com/en-us/127115
N/A
https://support.apple.com/en-us/127116
N/A
https://support.apple.com/en-us/127117
N/A
https://support.apple.com/en-us/127118
N/A
https://support.apple.com/en-us/127119
N/A
https://support.apple.com/en-us/127120
N/A
Hyperlink: https://support.apple.com/en-us/127110
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127111
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127115
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127116
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127117
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127118
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127119
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127120
Resource: N/A
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-787CWE-787 Out-of-bounds Write
Type: CWE
CWE ID: CWE-787
Description: CWE-787 Out-of-bounds Write
Metrics
VersionBase scoreBase severityVector
3.16.2MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 6.2
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:product-security@apple.com
Published At:11 May, 2026 | 21:19
Updated At:12 May, 2026 | 18:17

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An attacker on the local network may be able to cause a denial-of-service.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.2MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 6.2
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-787Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-787
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://support.apple.com/en-us/127110product-security@apple.com
N/A
https://support.apple.com/en-us/127111product-security@apple.com
N/A
https://support.apple.com/en-us/127115product-security@apple.com
N/A
https://support.apple.com/en-us/127116product-security@apple.com
N/A
https://support.apple.com/en-us/127117product-security@apple.com
N/A
https://support.apple.com/en-us/127118product-security@apple.com
N/A
https://support.apple.com/en-us/127119product-security@apple.com
N/A
https://support.apple.com/en-us/127120product-security@apple.com
N/A
Hyperlink: https://support.apple.com/en-us/127110
Source: product-security@apple.com
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127111
Source: product-security@apple.com
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127115
Source: product-security@apple.com
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127116
Source: product-security@apple.com
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127117
Source: product-security@apple.com
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127118
Source: product-security@apple.com
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127119
Source: product-security@apple.com
Resource: N/A
Hyperlink: https://support.apple.com/en-us/127120
Source: product-security@apple.com
Resource: N/A

Change History

0
Information is not available yet

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Known To Be Used In Ransomware Campaigns?-Not Available
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CWE ID-CWE-787
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Assigner-Apple Inc.
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
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KEV Action Due Date-Not Available

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CWE ID-CWE-787
Out-of-bounds Write
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Matching Score-6
Assigner-Apple Inc.
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Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-6.42% / 91.13%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-23 Oct, 2025 | 18:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Known KEV||Action Due Date - 2022-07-18||Apply updates per vendor instructions.

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Action-Not Available
Vendor-Apple Inc.
Product-mac_os_xtvoswatchosipadosiphone_osiOStvOSwatchOSmacOSMultiple Products
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3854
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.37% / 59.13%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.3. An application may be able to execute arbitrary code with system privileges.

Action-Not Available
Vendor-Apple Inc.
Product-mac_os_xmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3871
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.37% / 59.13%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.3. An application may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-mac_os_xmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3865
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-8.8||HIGH
EPSS-0.47% / 64.75%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, tvOS 13.3.1, Safari 13.0.5, iTunes for Windows 12.10.4, iCloud for Windows 11.0, iCloud for Windows 7.17. Processing maliciously crafted web content may lead to arbitrary code execution.

Action-Not Available
Vendor-openSUSEApple Inc.
Product-itunesiphone_osipadostvossafariicloudleapiTunes for WindowsiCloud for WindowsSafariiOSiCloud for Windows (Legacy)tvOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2022-32821
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.17% / 37.45%
||
7 Day CHG~0.00%
Published-23 Sep, 2022 | 18:59
Updated-22 May, 2025 | 18:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved validation. This issue is fixed in watchOS 8.7, tvOS 15.6, iOS 15.6 and iPadOS 15.6, macOS Monterey 12.5. An app may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-tvosmacosiphone_osipadoswatchoswatchOStvOSmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3904
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.33% / 55.54%
||
7 Day CHG~0.00%
Published-01 Apr, 2020 | 17:51
Updated-04 Aug, 2024 | 07:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved state management. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-mac_os_xmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3849
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-9.8||CRITICAL
EPSS-0.86% / 75.11%
||
7 Day CHG~0.00%
Published-01 Apr, 2020 | 18:09
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-mac_os_xmacOS
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-20
Improper Input Validation
CVE-2020-3905
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.30% / 53.53%
||
7 Day CHG~0.00%
Published-01 Apr, 2020 | 17:52
Updated-04 Aug, 2024 | 07:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-mac_os_xmacOS
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-20
Improper Input Validation
CVE-2020-3893
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.30% / 53.53%
||
7 Day CHG~0.00%
Published-01 Apr, 2020 | 17:49
Updated-04 Aug, 2024 | 07:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-mac_os_xmacOS
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-20
Improper Input Validation
CVE-2020-3892
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.30% / 53.53%
||
7 Day CHG~0.00%
Published-01 Apr, 2020 | 17:49
Updated-04 Aug, 2024 | 07:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-mac_os_xmacOS
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-20
Improper Input Validation
CVE-2020-3825
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-8.8||HIGH
EPSS-0.59% / 69.27%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, tvOS 13.3.1, Safari 13.0.5, iTunes for Windows 12.10.4, iCloud for Windows 11.0, iCloud for Windows 7.17. Processing maliciously crafted web content may lead to arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-itunesiphone_osipadostvossafariicloudiTunes for WindowsiCloud for WindowsSafariiOSiCloud for Windows (Legacy)tvOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3834
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.37% / 59.13%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 6.1.2. An application may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-watchoswatchOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3848
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-9.8||CRITICAL
EPSS-0.86% / 75.11%
||
7 Day CHG~0.00%
Published-01 Apr, 2020 | 18:09
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-mac_os_xmacOS
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-20
Improper Input Validation
CVE-2020-3860
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.13% / 32.01%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-iphone_oswatchosipadoswatchOSiOS
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-20
Improper Input Validation
CVE-2020-3856
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.35% / 57.62%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. Processing a maliciously crafted string may lead to heap corruption.

Action-Not Available
Vendor-Apple Inc.
Product-iphone_oswatchostvosipadosmac_os_xtvOSmacOSwatchOSiOS
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-20
Improper Input Validation
CVE-2022-42808
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-9.8||CRITICAL
EPSS-2.59% / 85.72%
||
7 Day CHG~0.00%
Published-01 Nov, 2022 | 00:00
Updated-22 Apr, 2025 | 15:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in tvOS 16.1, iOS 16.1 and iPadOS 16, macOS Ventura 13, watchOS 9.1. A remote user may be able to cause kernel code execution.

Action-Not Available
Vendor-Apple Inc.
Product-tvosmacoswatchosipadosiphone_oswatchOStvOSmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2022-26768
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.83% / 74.67%
||
7 Day CHG~0.00%
Published-26 May, 2022 | 19:23
Updated-30 May, 2025 | 19:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.4, watchOS 8.6, tvOS 15.5, macOS Big Sur 11.6.6. An application may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-watchosipadosiphone_ostvosmacoswatchOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2022-32908
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.13% / 32.24%
||
7 Day CHG~0.00%
Published-20 Sep, 2022 | 00:00
Updated-29 May, 2025 | 15:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Monterey 12.6, iOS 15.7 and iPadOS 15.7, iOS 16, macOS Big Sur 11.7. A user may be able to elevate privileges.

Action-Not Available
Vendor-Apple Inc.
Product-iphone_osmacostvosipadoswatchosmacOSiOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3857
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.23% / 45.17%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with system privileges.

Action-Not Available
Vendor-Apple Inc.
Product-iphone_oswatchostvosipadosmac_os_xtvOSmacOSwatchOSiOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3843
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-8.8||HIGH
EPSS-1.65% / 82.18%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

Action-Not Available
Vendor-Apple Inc.
Product-iphone_oswatchoswatchOS-1iOS-1
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-3858
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.37% / 59.13%
||
7 Day CHG~0.00%
Published-27 Feb, 2020 | 20:45
Updated-04 Aug, 2024 | 07:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1. An application may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-iphone_osipadosiOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42869
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.5||HIGH
EPSS-0.14% / 33.05%
||
7 Day CHG~0.00%
Published-10 Jan, 2024 | 22:03
Updated-20 Jun, 2025 | 16:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Ventura 13.4, iOS 16.5 and iPadOS 16.5. Multiple issues in libxml2.

Action-Not Available
Vendor-Apple Inc.
Product-iphone_osmacosipadosmacOSiOS and iPadOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42901
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.03% / 10.42%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42906
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-8.8||HIGH
EPSS-0.10% / 26.60%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42926
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.08% / 22.86%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42902
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.03% / 10.42%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42917
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-8.8||HIGH
EPSS-0.09% / 25.34%
||
7 Day CHG+0.02%
Published-30 Nov, 2023 | 22:18
Updated-23 Oct, 2025 | 18:49
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Known KEV||Action Due Date - 2023-12-25||Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.

Action-Not Available
Vendor-webkitgtkDebian GNU/LinuxApple Inc.Fedora Project
Product-debian_linuxipadosfedorawebkitgtk\+macossafariiphone_osSafarimacOSiOS and iPadOSMultiple Products
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42910
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-8.8||HIGH
EPSS-0.13% / 32.15%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42903
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.03% / 9.94%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42911
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.03% / 9.94%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42871
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.12% / 30.12%
||
7 Day CHG~0.00%
Published-10 Jan, 2024 | 22:03
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The issue was addressed with improved memory handling. This issue is fixed in macOS Sonoma 14, iOS 17 and iPadOS 17. An app may be able to execute arbitrary code with kernel privileges.

Action-Not Available
Vendor-Apple Inc.
Product-ipadosiphone_osmacosiOS and iPadOSmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42912
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.03% / 9.94%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42908
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.03% / 10.42%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-43010
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-8.8||HIGH
EPSS-0.05% / 15.68%
||
7 Day CHG~0.00%
Published-12 Mar, 2026 | 00:52
Updated-25 Mar, 2026 | 18:45
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The issue was addressed with improved memory handling. This issue is fixed in iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2, Safari 17.2, iOS 16.7.15 and iPadOS 16.7.15, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.

Action-Not Available
Vendor-Apple Inc.
Product-iphone_ossafariipadosmacosSafariiOS and iPadOSmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42907
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.03% / 9.94%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Sonoma 14.2. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-42882
Matching Score-6
Assigner-Apple Inc.
ShareView Details
Matching Score-6
Assigner-Apple Inc.
CVSS Score-7.8||HIGH
EPSS-0.07% / 20.70%
||
7 Day CHG~0.00%
Published-12 Dec, 2023 | 00:27
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The issue was addressed with improved memory handling. This issue is fixed in macOS Sonoma 14.2. Processing an image may lead to arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-macosmacOS
CWE ID-CWE-787
Out-of-bounds Write
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