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Vulnerability · Published Jul 27, 2026 · Assigned by apple

CVE-2026-64757

High 8.8

In plain English

A high-severity memory corruption in iOS and iPadOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 59.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A memory corruption issue was addressed with improved state management. This issue is fixed in Safari 26.6, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12webkit2gtkno fix listedDEBIAN-CVE-2026-64757
Debian:13webkit2gtk2.52.6-1~deb13u1DEBIAN-CVE-2026-64757
Debian:14webkit2gtk2.52.6-1DEBIAN-CVE-2026-64757
Debian:12wpewebkitno fix listedDEBIAN-CVE-2026-64757
Debian:13wpewebkitno fix listedDEBIAN-CVE-2026-64757
Debian:14wpewebkit2.52.6-1DEBIAN-CVE-2026-64757
Ubuntu:22.04:LTSqtwebkit-opensource-srcno fix listedUBUNTU-CVE-2026-64757
Ubuntu:24.04:LTSqtwebkit-opensource-srcno fix listedUBUNTU-CVE-2026-64757
Ubuntu:22.04:LTSwebkit2gtkno fix listedUBUNTU-CVE-2026-64757
Ubuntu:24.04:LTSwebkit2gtk2.52.6-0ubuntu0.24.04.1UBUNTU-CVE-2026-64757
Ubuntu:24.04:LTSwebkit2gtk2.52.6-0ubuntu0.24.04.1USN-8703-1
Ubuntu:26.04:LTSwebkit2gtk2.52.6-0ubuntu0.26.04.1USN-8703-1
Ubuntu:26.04:LTSwebkit2gtk2.52.6-0ubuntu0.26.04.1UBUNTU-CVE-2026-64757
Ubuntu:22.04:LTSwpewebkitno fix listedUBUNTU-CVE-2026-64757

Affected products (as reported)

VendorProductVersions
Apple Safari 0 – before 26.6
Apple iOS and iPadOS 0 – before 18.7.100 – before 26.6
Apple macOS 0 – before 26.6
Apple visionOS 0 – before 26.6
Apple watchOS 0 – before 26.6

Weakness: CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References