CVE-2026-65390
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk33th percentile - higher than 33% of all known CVEs
Summary
An integer overflow vulnerability in Safari and Apple systems. Processing maliciously crafted web content may lead to memory corruption.
Risk Assessment
Potential for remote code execution or system crashes, compromising data confidentiality and availability.
Recommendation
Update Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS to the latest versions mentioned in the description.
Other vulnerabilities in Apple Safari
See all- CVE-2015-5780High
The Safari Extensions implementation in Apple Safari before version 9 does not require user confirmation before replacing an installed extension, which may lead to unspecified impacts and attack vectors.
- CVE-2014-1303High
A heap-based buffer overflow in Apple Safari 7.0.2 allows remote attackers to execute arbitrary code and bypass a sandbox protection mechanism.
- CVE-2014-1300High
An unspecified vulnerability in Apple Safari 7.0.2 on OS X allows remote attackers to execute arbitrary code with root privileges via unknown vectors.
- CVE-2022-42856HighActively exploited
A type confusion issue in Safari, iOS, iPadOS, macOS, and tvOS. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of reports that this issue may have been actively exploited.
- CVE-2019-8506HighActively exploited
A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.
- CVE-2026-65391High
An out-of-bounds write vulnerability in Safari and Apple systems. Processing maliciously crafted web content may lead to memory corruption.
- CVE-2026-43670High
A Content Security Policy bypass was addressed in AudioWorklet contexts in Safari and Apple operating systems. Processing maliciously crafted web content may bypass CSP.
- CVE-2026-65341Medium
A memory handling issue in the web content processing component was addressed with improved memory handling. The flaw affects Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS. Processing maliciously crafted web content may lead to memory corruption.
- CVE-2026-64787Medium
A use-after-free issue in the web content processing component was addressed with improved memory management. The flaw affects Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS. Processing maliciously crafted web content may lead to an unexpected process termination.
- CVE-2026-64757High
A memory corruption issue was addressed with improved state management. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Original NVD description (English source)
An integer overflow was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.