High 8.8Published Sep 14, 2026

CVE-2026-65391An out-of-bounds write issue was addressed with improved bounds checking.

Updated under an hour ago (Oct 27, 2026, 6:10 AM ET)

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It affects Apple Safari and 7 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

An out-of-bounds write issue was addressed with improved bounds checking. 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: 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-190
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apple
NVD analysis: Analyzed
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apple Safari apple:safari (from the name)	before 26.6.1	CNA record
Apple iOS and iPadOS apple:ios_and_ipados (from the name)	before 26.6.1	CNA record
Apple macOS apple:macos (from the name)	before 26.6.2	CNA record
Apple tvOS apple:tvos (from the name)	before 27	CNA record
Apple visionOS apple:visionos (from the name)	before 27	CNA record
Apple watchOS apple:watchos (from the name)	before 27	CNA record
apple safari apple:safari	before 26.6.1	NVD
apple ipados apple:ipados	before 26.6.1	NVD
apple iphone_os apple:iphone_os	before 26.6.1	NVD
apple macos apple:macos	before 26.6.2	NVD
1–10 of 13

References

References

https://support.apple.com/en-us/148281	release-notes, vendor-advisory
https://support.apple.com/en-us/148282	release-notes, vendor-advisory
https://support.apple.com/en-us/148286	release-notes, vendor-advisory
https://support.apple.com/en-us/149036	release-notes, vendor-advisory
https://support.apple.com/en-us/149037	release-notes, vendor-advisory
https://support.apple.com/en-us/149038	release-notes, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.