Full Report
Android security advisory – March 2026 monthly rollup (AV26-187)
Analysis Summary
# Vulnerability: Android Security Advisory – March 2026 Monthly Rollup (AV26-187)
## CVE Details
*Note: As this is a monthly "rollup" advisory, it encompasses multiple CVE identifiers across various system components.*
- **CVE ID:** Multiple (Refer to the Android Security Bulletin for specific 2026-03-XX identifiers)
- **CVSS Score:** Range typically 7.0 - 9.8 (**High to Critical**)
- **CWE:** Commonly includes CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-200 (Information Disclosure), and CWE-264 (Permissions, Privileges, and Access Controls).
## Affected Systems
- **Products:** Android OS, Google Play system updates, and various component firmware (Qualcomm, MediaTek, Arm).
- **Versions:** Android 13, Android 14, Android 15, and Android 16.
- **Configurations:** Devices utilizing specific hardware abstraction layers (HALs) and kernel versions (primarily 5.10, 5.15, 6.1, and 6.6).
## Vulnerability Description
This rollup addresses a collection of security flaws categorized into two primary security patch levels:
1. **Framework/System:** High-severity vulnerabilities in the Android Framework and System components that could allow an attacker to achieve **Remote Code Execution (RCE)** or **Local Privilege Escalation (LPE)**. These often involve memory corruption in media handling or system services.
2. **Kernel/Vendor Components:** Vulnerabilities in closed-source components (Qualcomm, MediaTek) and the Linux kernel. These typically involve flaws in GPU drivers, Wi-Fi chipsets, or cellular basebands which can lead to sandbox escapes or kernel-level execution.
## Exploitation
- **Status:** Vulnerabilities vary; historically, some LPE flaws in this rollup may have "limited, targeted exploitation" status if flagged by Google (Check specific CVEs for the "exploited" badge).
- **Complexity:** Low to Medium.
- **Attack Vector:** Varies (Network via media/proximate signals, or Local via malicious applications).
## Impact
- **Confidentiality:** High (Risk of data theft and credential exposure).
- **Integrity:** High (Risk of system file modification and persistent malware installation).
- **Availability:** High (Risk of permanent device bricking or frequent system crashes).
## Remediation
### Patches
- **2026-03-01 Security Patch Level:** Addresses Framework and System vulnerabilities.
- **2026-03-05 Security Patch Level:** Includes all fixes from the 03-01 level plus Kernel and Vendor-specific updates.
- **Update Path:** Navigate to **Settings > System > System update** or **Settings > Security & privacy > System & updates**.
### Workarounds
- **Minimize App Exposure:** Only install applications from the Google Play Store and avoid sideloading APKs.
- **Restrict Connectivity:** Disable Bluetooth and Wi-Fi when not in use to reduce the attack surface for proximate exploits.
## Detection
- **Indicators of Compromise:** Unusual battery drain, unexplained data usage, or unauthorized access to device administrative features.
- **Detection Methods:** Use Google Play Protect to scan for known malicious applications and verify the "Security patch level" in device settings to ensure it reads **March 1, 2026**, or later.
## References
- Android Security Bulletin (March 2026): hxxps[://]source[.]android[.]com/docs/security/bulletin/2026/2026-03-01
- Canadian Centre for Cyber Security Advisory: hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/android-security-advisory-march-2026-monthly-rollup-av26-187