CVE-2026-28879 Details
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.
A use-after-free vulnerability has been identified in the WebKit component of various Apple operating systems, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. This vulnerability arises from improper memory management when processing maliciously crafted web content, which can lead to an unexpected process crash. The issue is present in WebKit versions bundled with iOS 18.7.7, iPadOS 18.7.7, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, tvOS 26.4, visionOS 26.4, and watchOS 26.4.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 25, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://support.apple.com/en-us/126792 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/126793 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/126794 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/126795 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/126796 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/126797 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/126798 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/126799 | [email protected] | Release NotesVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apple ipados | < 18.7.7 >= 26.0, < 26.4 |
CPE
Remediation
| |
| apple iphone os | < 18.7.7 >= 26.0, < 26.4 |
CPE
Remediation
| |
| apple macos | >= 14.0, < 14.8.5 >= 15.0, < 15.7.5 >= 26.0, < 26.4 |
CPE
Remediation
| |
| apple tvos | < 26.4 |
CPE
Remediation
| |
| apple visionos | < 26.4 |
CPE
Remediation
| |
| apple watchos | < 26.4 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 25, 2026 | Initial Analysis | [email protected] |
| Mar 25, 2026 | CVE Modified | CISA-ADP |
| Mar 25, 2026 | New CVE Received | [email protected] |