EUVD-2026-77987
GHSA-4v5m-fgg9-qf7f
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Local crafted-file open with required user interaction; description supports only app termination, so C:N/I:N and A:H rather than the vendor's C:H/I:H.
Primary rating from Vendor (apple).
CVSS VectorVendor: apple
Lifecycle Timeline
7DescriptionCVE.org
A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27. Processing a maliciously crafted file may lead to unexpected app termination.
AnalysisAI
Memory corruption during file parsing on Apple iOS/iPadOS (before version 27) and macOS (before Golden Gate 27) can cause the handling application to terminate unexpectedly when a user opens a maliciously crafted file; the flaw was addressed by strengthening input validation. Because the attack vector is local (the file must be delivered to and opened on the device) and user interaction is required, exploitation is not remote or unattended, and no special privileges are needed (PR:N, unauthenticated). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to open a maliciously crafted file on an affected Apple OS (iOS/iPadOS before 27, or macOS Golden Gate 27); the flaw is in file processing, so the malicious content must reach and be parsed by the vulnerable application. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is LOW-to-MODERATE despite the vendor's 7.8 'High' rating. … 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 patch: update to iOS 27, iPadOS 27, or macOS Golden Gate 27, which contain the improved input-validation fix; refer to the Apple advisories at https://support.apple.com/en-us/149034 (iOS/iPadOS) and https://support.apple.com/en-us/149035 (macOS). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Vendor-released patch: iOS/iPadOS 27 and macOS Golden Gate 27. …
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External POC / Exploit Code
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