CVE-2026-65390highCWE-190

CVE-2026-65390: high-severity vulnerability in Apple Safari

Published 14 Sep 2026 · Updated 26 Oct 2026

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.8epss 0.4%

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Apple · iOS and iPadOS Apple · macOS Apple · Safari Apple · tvOS Apple · visionOS Apple · watchOS

Related CVEs — Apple Safari

In the same product, most dangerous first.

CVE-2021-30860HIGHCVE-2021-30860EPSS 76.0%KEV CVE-2021-30657MEDIUMCVE-2021-30657EPSS 68.5%KEV CVE-2025-43300CRITICALCVE-2025-43300EPSS 65.2%KEV CVE-2023-41064HIGHCVE-2023-41064EPSS 53.4%KEV CVE-2023-32434HIGHCVE-2023-32434EPSS 51.5%KEV CVE-2021-30807HIGHCVE-2021-30807EPSS 28.8%KEV

References

https://support.apple.com/en-us/148281 https://support.apple.com/en-us/148282 https://support.apple.com/en-us/148286 https://support.apple.com/en-us/149036 https://support.apple.com/en-us/149037 https://support.apple.com/en-us/149038