EUVD-2026-78117
GHSA-f9ph-w48v-6xp9
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Local app execution with UI:R for launch, PR:N since no privileges are needed, and confidentiality-only kernel layout disclosure with no integrity or availability impact.
Primary rating from Vendor (apple).
CVSS VectorVendor: apple
Lifecycle Timeline
6DescriptionCVE.org
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to determine kernel memory layout.
AnalysisAI
Apple fixed a kernel uninitialized-memory flaw (CWE-457) across iOS/iPadOS, macOS, tvOS, visionOS, and watchOS in which a locally installed app can determine kernel memory layout, defeating address-space randomization. The impact is information disclosure only - high confidentiality, no integrity or availability impact - and exploitation requires a local app plus user interaction (CVSS:3.1/AV:L/AC:L/PR:N/UI:R, 5.5). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires three concrete things: a malicious or compromised application installed on the target device, the ability to execute that app so it reaches the affected kernel interface, and user interaction to launch it (CVSS UI:R) - there is no network-reachable vector (AV:L). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals point to a low-priority, defense-in-depth fix rather than an emergency patch. … 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 updates as soon as practical: iOS and iPadOS 26.7 or 27, macOS Sequoia 15.8, macOS Tahoe 26.7, macOS Golden Gate 27, tvOS 27, visionOS 27, and watchOS 27 - see the Apple advisories at https://support.apple.com/en-us/149034 through 149043 for the update matching each platform. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-457 – Use of Uninitialized Variable
View allSame technique Information Disclosure
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External POC / Exploit Code
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