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iOS and iPadOS CVE-2026-64778

| EUVDEUVD-2026-60488 MEDIUM
Information Exposure (CWE-200)
2026-08-17 apple GHSA-p6cw-hc3p-cxhh
Information Disclosure Apple 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:H/I:N/A:N
vuln.today AI
6.5 MEDIUM

Browser-delivered via network (AV:N), no attacker privilege needed (PR:N), victim must visit malicious page (UI:R), high confidentiality leak with no integrity or availability impact.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/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
High
Integrity
None
Availability
None

Lifecycle Timeline

5
Analysis Generated
Aug 18, 2026 - 14:32 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
UNKNOWN (no severity yet)
CVE Published
Aug 17, 2026 - 21:29 cve.org
MEDIUM 6.5

DescriptionCVE.org

The issue was addressed with improved checks. 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. Visiting a maliciously crafted website may leak sensitive data.

AnalysisAI

Sensitive data exposure in Apple iOS, iPadOS, and macOS Tahoe can be triggered when a user visits a maliciously crafted website, requiring no attacker-side authentication per the CVSS PR:N designation. Classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor), the flaw carries a CVSS 3.1 score of 6.5 with high confidentiality impact despite requiring user interaction to deliver. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires the victim to actively visit a maliciously crafted website using a WebKit-based browser on an unpatched Apple device running iOS prior to 18.7.10 or 26.6.1, iPadOS prior to 18.7.10 or 26.6.1, or macOS Tahoe prior to 26.6.2. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 score of 6.5 (Medium) reflects a realistic but bounded threat: AV:N/AC:L indicates effortless network delivery, PR:N confirms no attacker-side account or privilege is needed, but UI:R introduces a meaningful friction point requiring the victim to actively visit a malicious page. … 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 Apple has released fixes for all affected platforms; update to iOS 18.7.10 or iPadOS 18.7.10 (for devices on the legacy 18.x release train), iOS 26.6.1 or iPadOS 26.6.1 (for devices on the 26.x train), or macOS Tahoe 26.6.2, all available via Settings > General > Software Update (iOS/iPadOS) or System Settings > General > Software Update (macOS). … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-64778 vulnerability details – vuln.today
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