EUVD-2026-73956
GHSA-8pfw-pv2w-493m
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack via installed app (AV:L, PR:L), no interaction needed (UI:N), full file read/write yields C:H/I:H/A:H with unchanged scope.
Primary rating from Vendor (android).
CVSS VectorVendor: android
Lifecycle Timeline
6DescriptionCVE.org
In assertSafeToStartCustomActivity of AppRestrictionsFragment.java, there is a possible read/write access to private files due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
AnalysisAI
Local privilege escalation in Android's AppRestrictionsFragment allows a low-privileged app to gain unauthorized read/write access to private files via a confused deputy in the assertSafeToStartCustomActivity method. Affected versions span Android 14, 15, 16, 16-QPR2, and 17, making this a broad-surface vulnerability across the current Android ecosystem. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a malicious application to be installed on the target Android device with at minimum low-level (PR:L) permissions - standard for any installed app. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately reflects the local, low-complexity nature of this flaw. … 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 September 2026 Android Security Bulletin patch (2026-09-01 security patch level or later) available from Google at https://source.android.com/docs/security/bulletin/2026/2026-09-01. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, alert device users to risks of installing applications from untrusted sources and audit current Mobile Device Management (MDM) policies. …
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External POC / Exploit Code
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