CVE-2025-59607: Memory Corruption Buffer Overflow Vulnerability

CVE-2025-59607 Overview

CVE-2025-59607 is a memory corruption vulnerability affecting Qualcomm components. The flaw occurs when copying large input data that exceeds normal allocation limits, resulting in untrusted pointer dereference [CWE-822]. An authenticated local attacker with low privileges can trigger the condition without user interaction. Successful exploitation compromises confidentiality, integrity, and availability of the affected device.

The issue is documented in the Qualcomm September 2026 Security Bulletin.

Critical Impact
Local attackers can corrupt memory in Qualcomm components to achieve arbitrary code execution or elevate privileges on affected devices.

Affected Products

Qualcomm components referenced in the September 2026 Security Bulletin
Devices integrating vulnerable Qualcomm chipsets and firmware
Downstream OEM Android builds shipping the affected components

Discovery Timeline

2026-09-17 - CVE-2025-59607 published to the National Vulnerability Database (NVD)
2026-09-17 - Last updated in NVD database

Technical Details for CVE-2025-59607

Vulnerability Analysis

The vulnerability arises when the affected Qualcomm component copies input data whose size exceeds normal allocation limits. The oversized copy operation results in memory corruption tied to an untrusted pointer dereference [CWE-822]. Because the affected code paths handle attacker-influenced input without sufficient bounds enforcement, corruption of adjacent memory becomes possible.

An attacker exploiting the flaw can influence control-flow structures or heap metadata within the vulnerable process. The impact spans confidentiality, integrity, and availability, consistent with a local kernel or privileged-service compromise on mobile platforms.

Root Cause

The root cause is improper validation of input length before performing a memory copy. When the input exceeds the allocated buffer, the operation writes beyond its bounds or dereferences a pointer derived from untrusted data. This class of defect (CWE-822: Untrusted Pointer Dereference) allows attacker-controlled values to be treated as valid memory addresses.

Attack Vector

Exploitation requires local access to the device with low privileges (AV:L, PR:L). No user interaction is required. A malicious application or process running on the device can pass crafted input to the vulnerable Qualcomm component to trigger the corruption. Refer to the Qualcomm September 2026 Security Bulletin for component-level details.

// No verified proof-of-concept code is publicly available for CVE-2025-59607.
// Refer to the Qualcomm September 2026 Security Bulletin for technical details.

Detection Methods for CVE-2025-59607

Indicators of Compromise

Unexpected crashes or kernel panics referencing the affected Qualcomm driver or service
Repeated abnormal terminations of privileged system processes on Qualcomm-based devices
Installation of untrusted local applications shortly before instability events

Detection Strategies

Monitor mobile device management (MDM) telemetry for firmware and patch-level compliance across the Qualcomm bulletin baseline
Review Android logcat and tombstone artifacts for SIGSEGV crashes originating in Qualcomm components
Correlate application install events with subsequent system-service failures to identify potential exploitation attempts

Monitoring Recommendations

Track OEM security patch level (SPL) against the September 2026 Qualcomm bulletin baseline across the mobile fleet
Alert on devices that fail to receive vendor security updates within defined SLA windows
Ingest mobile crash telemetry into a centralized analytics platform for anomaly detection

How to Mitigate CVE-2025-59607

Immediate Actions Required

Apply OEM firmware updates that incorporate the Qualcomm September 2026 security patches as soon as they are available
Inventory devices using affected Qualcomm chipsets and prioritize patching for high-value or exposed endpoints
Restrict installation of untrusted applications through MDM policy to reduce local attack surface

Patch Information

Qualcomm has published fixes as part of the Qualcomm September 2026 Security Bulletin. Device OEMs must integrate the patched components into downstream firmware releases. Administrators should confirm updated builds are deployed to all affected endpoints.

Workarounds

Enforce application allowlisting via MDM to prevent execution of unvetted local code
Disable sideloading and developer options on managed devices where feasible
Segment mobile devices from sensitive corporate resources until patches are applied

bash

# Verify Android security patch level on managed devices
adb shell getprop ro.build.version.security_patch

# Example MDM query: list devices below the September 2026 patch baseline
# (replace with your MDM's query syntax)
# security_patch_level < "2026-09-01"