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CVE-2022-20494 is a resource-exhaustion vulnerability in Android's AutomaticZenRule component in AutomaticZenRule.java. The flaw can cause a persistent local denial of service on Android 10, 11, 12, 12L, and 13. Exploitation does not require additional execution privileges or user interaction.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a proof-of-concept Android application exploiting CVE-2022-20494, a high-severity permanent denial-of-service (PDoS) vulnerability in Android's NotificationManagerService. The exploit is implemented in Kotlin in the file `app/src/main/java/me/sithi/cve_2022_20494/MainActivity.kt`. The app allows the user to specify the size and number of malicious 'Do Not Disturb' (Zen) rules to add via the NotificationManager API. By creating a large number of rules with oversized names, the app exhausts system memory, causing the device to become unresponsive, display a black screen, or enter a crash/reboot loop. The exploit requires the ACCESS_NOTIFICATION_POLICY permission, which the app requests at runtime. The vulnerability was patched in the January 2023 Android Security Bulletin. The repository is structured as a standard Android Studio project, with the main exploit logic in the MainActivity. No network endpoints are involved; the attack is local and requires installation and execution of the app on a vulnerable device. The README provides detailed usage instructions and recovery steps for affected devices.
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1 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.