Low severity · published Aug 17, 2026
CVE-2026-64779
A memory corruption vulnerability was addressed with improved locking
3.1
CVSS
0.4%
EPSS
No
On KEV
Description
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27. Processing maliciously crafted web content may lead to an unexpected Safari crash.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 26.6.2 · source: vendor, NVD
IO
iOS · Apple
before 18.7.10; 26.0 before 26.6.1 · source: NVD
SA
Safari · Apple
before 26.6.1 · source: vendor
IA
iOS and iPadOS · Apple
before 18.7.10; before 26.6.1 · source: vendor
VI
visionOS · Apple
before 27 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64779
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-64779
Release Notes
https://support.apple.com/en-us/148281
Release Notes
https://support.apple.com/en-us/148282
support.apple.com
https://support.apple.com/en-us/148286
Release Notes
https://support.apple.com/en-us/148287
support.apple.com
https://support.apple.com/en-us/149038
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