EUVD-2026-73992
GHSA-hg3v-6cg9-rg8m
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack requires an installed app (PR:L, AV:L); no conditions or user interaction needed; full device impact once BAL bypass achieved.
Primary rating from Vendor (android).
CVSS VectorVendor: android
Lifecycle Timeline
7DescriptionCVE.org
In buildIntentSenderForUser of LauncherAppsService.java, there is a possible way to launch an activity from the background due to BAL Bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
AnalysisAI
Background Activity Launch (BAL) bypass in Android's LauncherAppsService allows a low-privilege local application to launch foreground activities from the background without user awareness or interaction. The flaw resides in buildIntentSenderForUser within LauncherAppsService.java, where authorization checks (CWE-863) are insufficient to prevent background callers from obtaining a valid intent sender that sidesteps Android's BAL restrictions. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must have a malicious application installed on the target Android device with at least standard installed-app (low) privileges - no additional system or root permissions are required. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately captures the attack surface: local access with low privilege but no special conditions or user interaction required after app installation, yielding full C/I/A impact. … 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 Android security patches distributed via the September 2026 Android Security Bulletin (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 mobile security and device management teams and audit current app permission policies. …
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Same weakness CWE-863 – Incorrect Authorization
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today