Full Report
Android security advisory – April 2026 monthly rollup (AV26-314)
Analysis Summary
# Vulnerability: Android Security Advisory – April 2026 Monthly Rollup
## CVE Details
- **CVE ID:** Multiple (Refer to the April 2026 Android Security Bulletin for the complete list, including System, Framework, and Kernel components).
- **CVSS Score:** Range typically 7.8 to 9.8 (**High to Critical**)
- **CWE:** Commonly includes CWE-119 (Memory Corruption), CWE-264 (Permissions/Privilege Escalation), and CWE-20 (Improper Input Validation).
## Affected Systems
- **Products:** Android devices running the Android Open Source Project (AOSP) and partner-specific components.
- **Versions:** Android 13, 14, 15, and 16 (where applicable based on the specific CVE stack).
- **Configurations:** Vulnerabilities affect various layers including:
- Android Framework
- Android System
- Kernel Components
- Third-party components (Qualcomm, MediaTek, Arm, etc.)
## Vulnerability Description
This rollup addresses a wide array of security flaws. The most severe vulnerabilities typically involve:
1. **System/Framework Flaws:** Critical memory corruption issues in the System component that could allow for remote code execution (RCE) via a specially crafted file or network packet without requiring additional execution privileges.
2. **Privilege Escalation:** Flaws in the Kernel or vendor-specific drivers that allow a locally installed malicious application to bypass sandbox restrictions and gain administrative or "root" access.
3. **Information Disclosure:** Vulnerabilities that allow unauthorized access to sensitive data within the System or Framework level.
## Exploitation
- **Status:** Vulnerabilities are generally identified as "Not exploited in the wild" unless specified by a "back-referenced" CVE (check the [source.android.com] bulletin for specific "exploited" flags).
- **Complexity:** Low to Medium.
- **Attack Vector:** Varies (Network for RCE-related Framework flaws; Local for Privilege Escalation flaws).
## Impact
- **Confidentiality:** High (Risk of data exfiltration and unauthorized access to user information).
- **Integrity:** High (Potential for unauthorized modification of system files or application data).
- **Availability:** High (Potential for permanent denial of service or "bricking" of the device).
## Remediation
### Patches
- **2026-04-01 Security Patch Level:** Addresses Framework and System vulnerabilities.
- **2026-04-05 Security Patch Level:** Addresses all 2026-04-01 issues plus Kernel and vendor-specific (Qualcomm, MediaTek, etc.) updates.
- **Action:** Users should navigate to **Settings > System > System update** to install the April 2026 security patch.
### Workarounds
- **Least Privilege:** Install only trusted applications from the Google Play Store.
- **Permissions:** Review and restrict app permissions, particularly for Location, Microphone, and Camera.
- **Bootloader Security:** Ensure the device bootloader remains locked to maintain the integrity of the Verified Boot process.
## Detection
- **System Settings:** Check "About Phone" or "Security" menus to verify the Android Security Patch Level is "April 1, 2026" or "April 5, 2026."
- **Enterprise Management:** MDM/UEM solutions can be used to audit device fleet patch levels.
- **Google Play Protect:** Ensure Play Protect is enabled to scan for known malicious apps attempting to exploit these vulnerabilities.
## References
- Android Security Bulletin (April 2026): hxxps[://]source[.]android[.]com/docs/security/bulletin/2026/2026-04-01
- Canadian Centre for Cyber Security Advisory: hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/android-security-advisory-april-2026-monthly-rollup-av26-314