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Apple WebKit CVE-2026-64715

| EUVDEUVD-2026-60485 MEDIUM
Use After Free (CWE-416)
2026-08-17 apple GHSA-f338-c843-j6jp
Use After Free Denial Of Service Apple Memory Corruption Ios And Ipados
6.5
CVSS 3.1 · Vendor: apple
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Severity by source

Vendor (apple) PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
vuln.today AI
6.5 MEDIUM

Network-delivered via crafted webpage (AV:N), victim must actively visit the page (UI:R), crash-only outcome with no data exposure or integrity loss (C:N/I:N/A:H).

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

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

Lifecycle Timeline

5
Analysis Generated
Aug 18, 2026 - 14:31 vuln.today
CVSS changed
Aug 18, 2026 - 14:22 NVD
6.5 (MEDIUM)
Patch available
Aug 17, 2026 - 22:03 EUVD
CVE Published
Aug 17, 2026 - 21:29 cve.org
MEDIUM 6.5
CVE Published
Aug 17, 2026 - 21:29 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected process crash.

AnalysisAI

Use-after-free memory corruption in Apple's WebKit web rendering engine crashes the browser process when handling maliciously crafted web content on iOS, iPadOS, and macOS Tahoe. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H) confirms network-reachable exploitation limited to availability impact - a process crash - with no confidentiality or integrity compromise. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Exploit
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Execution
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Vulnerability AssessmentAI

Exploitation User interaction is required - the victim must actively visit or be directed to a maliciously crafted webpage, confirmed by the CVSS UI:R metric. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 6.5 Medium score reflects a real but bounded risk: the attack is network-delivered with low complexity and requires no authentication, but demands active user interaction (UI:R) - the victim must visit a malicious page - and the outcome is limited to an availability impact (process crash), not remote code execution. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the vendor-released patches immediately: update iOS and iPadOS to version 18.7.10 or 26.6.1, and macOS Tahoe to version 26.6.2, available via Apple Software Update. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-64715 vulnerability details – vuln.today
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