VulnerabilityModified
CVE-2026-43658
Processing maliciously crafted web content may lead to an unexpected Safari crash.
HIGH 7.5EPSS 0.32%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.32% probability · 25th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-120
- Affected
- apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/visionos · apple/watchos
- Source
- product-security@apple.com
References
- https://support.apple.com/en-us/127110Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127115Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127118Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127119Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127120Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127121
- https://support.apple.com/en-us/148287
- https://access.redhat.com/errata/RHSA-2026:25918
- https://access.redhat.com/errata/RHSA-2026:25927
- https://access.redhat.com/errata/RHSA-2026:27728
- https://access.redhat.com/errata/RHSA-2026:27785
- https://access.redhat.com/errata/RHSA-2026:27804
- https://access.redhat.com/errata/RHSA-2026:28114
- https://access.redhat.com/errata/RHSA-2026:28146
- https://access.redhat.com/errata/RHSA-2026:28147
- https://access.redhat.com/errata/RHSA-2026:28148
- https://access.redhat.com/security/cve/CVE-2026-43658
- https://bugzilla.redhat.com/show_bug.cgi?id=2483968
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43658.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.