CVE-2026-43734

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Summary

CVECVE-2026-43734
StatePUBLISHED
Assignerapple
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-29 20:17:37 UTC
Updated2026-06-30 19:11:35 UTC
DescriptionA use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from ADP

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

EPSS: 0.002400000 probability, percentile 0.150370000 (date 2026-07-04)

Problem Types: CWE-416 | Processing maliciously crafted web content may lead to an unexpected process crash | CWE-416 CWE-416 Use After Free

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Apple Ipados All All All All
Operating System Apple Iphone Os All All All All
Operating System Apple Macos All All All All
Application Apple Safari All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apple Safari affected 26.5.2 custom Not specified
CNA Apple IOS And IPadOS affected 26.5.2 custom Not specified
CNA Apple MacOS affected 26.5.2 custom Not specified

References

ReferenceSourceLinkTags
support.apple.com/en-us/127594 [email protected] support.apple.com Vendor Advisory
support.apple.com/en-us/127685 [email protected] support.apple.com Vendor Advisory
support.apple.com/en-us/127595 [email protected] support.apple.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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