CVE-2026-43663
published 2026-06-29CVE-2026-43663: The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing…
PriorityP430medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
0.19%
9.3th percentile
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | < 26.5.2 | 26.5.2 |
| apple | ipados | < 26.5.2 | 26.5.2 |
| apple | iphone_os | < 26.5.2 | 26.5.2 |
| apple | macos | < 26.5.2 | 26.5.2 |
| apple | safari | < 26.5.2 | 26.5.2 |
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VulDB
Apple Safari/iOS/iPadOS/macOS up to 26.5.1 Web denial of service
vuldb·2026-06-30·CVSS 6.5
CVE-2026-43663 [MEDIUM] Apple Safari/iOS/iPadOS/macOS up to 26.5.1 Web denial of service
A vulnerability identified as problematic has been detected in Apple Safari, iOS, iPadOS and macOS up to 26.5.1. This issue affects some unknown processing of the component Web Handler. This manipulation causes denial of service.
The identification of this vulnerability is CVE-2026-43663. It is possible to initiate the attack remotely. There is no exploit available.
You should upgrade the affected component.
GHSA
The issue was addressed with improved memory handling.
ghsa_unreviewed·2026-06-29
CVE-2026-43663 [MEDIUM] CWE-119 The issue was addressed with improved memory handling.
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-06-29
Published