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iOS and iPadOS CVE-2026-65346

| EUVDEUVD-2026-60509 HIGH
Integer Overflow or Wraparound (CWE-190)
2026-08-17 apple GHSA-w35v-gcq3-jj3p
8.8
CVSS 3.1 · Vendor: apple
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Severity by source

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

Image delivery is network-accessible (AV:N), no special config needed (AC:L), no auth required (PR:N), but victim must render the image (UI:R); arbitrary code execution yields full C/I/A impact with no scope change.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Aug 18, 2026 - 11:23 vuln.today
CVSS changed
Aug 18, 2026 - 11:22 NVD
8.8 (None) 8.8 (HIGH)
Patch available
Aug 17, 2026 - 22:03 EUVD
CVE Published
Aug 17, 2026 - 21:31 cve.org
HIGH 8.8
CVE Published
Aug 17, 2026 - 21:31 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing an image may lead to arbitrary code execution.

AnalysisAI

Integer overflow in Apple's image processing subsystem across iOS, iPadOS, and macOS Tahoe allows arbitrary code execution when a user processes a maliciously crafted image. Affected platforms include iOS and iPadOS prior to 26.6.1 and macOS Tahoe prior to 26.6.2, with Apple releasing out-of-band point releases indicating urgency. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
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Impact
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Vulnerability AssessmentAI

Exploitation The victim must process a maliciously crafted image file, which can occur through actively opening a file, automatic thumbnail or preview generation in Mail or Messages, or image rendering in a browser or third-party application - no special device configuration or non-default setting is required. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 8.8 score (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) reflects a network-accessible flaw with low attack complexity requiring only a single user interaction - viewing or downloading a crafted image - making exploitation highly accessible to remote threat actors. … 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 Vendor-released patches are available: update iOS and iPadOS to version 26.6.1 and macOS Tahoe to version 26.6.2 via Settings > General > Software Update (iOS/iPadOS) or System Settings > General > Software Update (macOS). … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all iOS and iPadOS devices (staff phones and tablets) and macOS Tahoe systems not yet running iOS/iPadOS 26.6.1 or macOS 26.6.2, and notify users of mandatory patching. …

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CVE-2026-65346 vulnerability details – vuln.today

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