CVE-2025-32332: Google Android Use-After-Free Vulnerability

CVE-2025-32332 Overview

CVE-2025-32332 is a use-after-free vulnerability affecting Google Android across multiple code locations. The flaw enables local privilege escalation without requiring user interaction or additional execution privileges. An attacker with local code execution on an affected device can trigger memory corruption to gain elevated privileges.

Google addressed the issue in the Android Security Bulletin September 2025. The vulnerability is classified under [CWE-416] (Use After Free).

Critical Impact
Local attackers can escalate privileges on affected Android devices without user interaction, potentially gaining access to protected system resources and data.

Affected Products

Google Android (multiple versions covered in the September 2025 Android Security Bulletin)
Devices that have not applied the 2025-09-01 security patch level
OEM Android builds derived from unpatched Android source

Discovery Timeline

2025-09-04 - CVE-2025-32332 published to the National Vulnerability Database
2025-09-01 - Google publishes fix in the Android Security Bulletin
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-32332

Vulnerability Analysis

The vulnerability is a use-after-free condition present in multiple locations within the Android platform. A use-after-free occurs when code continues to reference memory after it has been released back to the allocator. An attacker who controls the allocation and reuse pattern of that freed memory can place attacker-controlled data where the stale pointer is later dereferenced.

The advisory states the flaw leads to local escalation of privilege with no additional execution privileges needed. This indicates the vulnerable code path is reachable from an unprivileged context, such as an installed application, and the resulting corruption occurs in a higher-privileged component. Successful exploitation grants the attacker capabilities beyond those normally granted to a third-party application.

Google has not published exploitation details, and no public proof-of-concept is available at the time of writing.

Root Cause

The root cause is improper object lifetime management [CWE-416]. Code retains a reference to an object after that object has been freed, and later dereferences the stale pointer. When the freed allocation is reclaimed for attacker-controlled data before the dereference, the attacker gains influence over program state — including function pointers, vtable pointers, or object metadata used in subsequent operations.

Attack Vector

Exploitation requires local access on the target device. An attacker delivers a malicious application or leverages an already-installed low-privileged process to invoke the vulnerable code path. The attack does not require user interaction beyond initial application installation or execution. Because the flaw exists in multiple locations, several distinct trigger paths may exist within the affected components.

The vulnerability description does not disclose the specific component, syscall, or IPC interface involved. Refer to the Android Security Bulletin September 2025 for component-level details when Google releases them.

Detection Methods for CVE-2025-32332

Indicators of Compromise

Unexpected native crashes or SIGSEGV tombstones in /data/tombstones/ originating from privileged system processes
Applications repeatedly invoking the same system service or binder interface in tight loops, consistent with heap grooming behavior
Installation of applications from untrusted sources shortly before anomalous system-level crashes

Detection Strategies

Audit installed applications on managed devices against enterprise allowlists and remove unknown or sideloaded packages
Verify device security patch level using Settings or Mobile Device Management (MDM) reporting to confirm the 2025-09-01 patch is applied
Correlate logcat and tombstone data with process privilege transitions to identify potential exploitation attempts

Monitoring Recommendations

Enable MDM policies that report Android security patch level and flag devices below the 2025-09-01 baseline
Monitor for applications requesting sensitive runtime permissions that do not match declared functionality
Track binder transaction anomalies and repeated native crashes in privileged services through mobile threat defense telemetry

How to Mitigate CVE-2025-32332

Immediate Actions Required

Apply the Android security patch level 2025-09-01 or later on all managed devices
Contact device OEMs for firmware updates on devices that do not receive updates directly from Google
Restrict installation of applications from unknown sources through MDM configuration
Inventory devices that cannot be updated and plan for replacement or network isolation

Patch Information

Google released fixes for CVE-2025-32332 in the September 2025 Android Security Bulletin. Devices with a security patch level of 2025-09-01 or later contain the fix. Full remediation details are available in the Android Security Bulletin September 2025. OEM patch availability varies; consult vendor advisories for device-specific timelines.

Workarounds

No official workaround is published; patching is the only supported remediation
Limit exposure by installing applications exclusively from Google Play and enabling Google Play Protect
Enforce enterprise application allowlisting through MDM to reduce the local attack surface until patches are deployed

bash

# Verify Android security patch level on a connected device
adb shell getprop ro.build.version.security_patch
# Expected output for patched devices: 2025-09-01 or later