CVE-2025-59616: Qualcomm Use-After-Free Vulnerability in Multiple Platforms—CVSS 6.6

Technical summary

CVE-2025-59616 is a use-after-free vulnerability (CWE-416) in Qualcomm firmware and chipset drivers across a wide range of mobile platforms, IoT modules, and specialized processors. The flaw occurs during IOCTL call processing when multiple invocations share the same buffer file descriptor; the kernel or driver fails to properly track or validate buffer lifecycle, leading to access of deallocated memory. The attack surface is local, requiring user-level privileges and user interaction (UI element triggering), though the impact extends across system boundaries (CVSS vector: AV:L/AC:H/PR:L/UI:R/S:C).

Business impact

Organizations deploying affected Qualcomm hardware face elevated risk to device integrity and data confidentiality. For consumer-facing deployments, successful exploitation could enable credential theft, unauthorized access to device sensors or network interfaces, or denial of service affecting end-user experience. For enterprise IoT and mobile deployments, compromised devices could serve as pivot points into corporate networks or be weaponized for mass disruption. The broad hardware footprint—spanning consumer handsets (Snapdragon 460/662/8 Elite), automotive platforms (SC8380XP), and specialized modules (QMP1000/2001)—means remediation scope is large and dependency on vendor firmware releases is critical.

Affected systems

The vulnerability impacts Qualcomm's entire contemporary chipset and platform family, including: Snapdragon mobile processors (460, 662, 8 Elite Gen 5); Snapdragon XR platforms; specialized modules (QMP1000/2001); automotive and edge compute processors (SC8380XP, QCM5430/6490); FastConnect WiFi/BLE modules (6700, 6900, 7800); and dedicated video collaboration and AR platforms. Both firmware images and hardware-level implementations are affected. End devices include smartphones, tablets, IoT gateways, AR glasses, wearables, and automotive infotainment systems from OEMs integrating these components.

Exploitability

Exploitation requires local access and low user privileges, making it primarily a risk in shared-user, multi-tenant, or supply-chain compromise scenarios. The UI interaction requirement and high complexity (AC:H) restrict opportunistic exploitation, but motivated attackers with physical access or supply-chain leverage could weaponize this reliably. No public exploit is currently known, and the vulnerability has not been formally assigned to CISA's KEV catalog as of the published date, indicating in-the-wild exploitation has not been widely observed. However, the broad OEM ecosystem means patches will roll out unevenly; legacy devices may never be remediated.

Remediation

Qualcomm must release patched firmware and chipset drivers addressing the buffer lifecycle management and IOCTL input validation. OEMs must integrate and test these patches across their device portfolios, then distribute updates via security bulletins and OTA channels. End users should enable automatic security updates where available and prioritize patching for devices handling sensitive data or connected to corporate networks. Organizations should inventory devices using affected Qualcomm platforms and establish a phased patching schedule, prioritizing high-risk deployments (enterprise devices, automotive, IoT gateways) ahead of consumer endpoints.

Patch guidance

Monitor Qualcomm's official security advisories and firmware release notes for specific platform updates addressing CVE-2025-59616. Patches will likely be distributed across multiple firmware versions depending on the platform family (Snapdragon, FastConnect, QCM, etc.). Verify patch applicability by cross-referencing your device's Qualcomm platform identifier and current firmware version against Qualcomm's published CVE resolution matrix. For OEM partners, integrate patches into your device firmware build process and conduct regression testing before rolling out OTA updates. For enterprise deployments, stage patches in a test environment with representative hardware before production rollout to minimize service disruption.

Detection guidance

At the endpoint level, monitor system logs and crash dumps for use-after-free exceptions or unexpected driver resets correlating with IOCTL activity. On supported platforms, enable kernel address sanitizer (KASAN) or similar memory debugging during development and testing to catch errant memory access patterns. At the network level, behavioral detection of device instability following attempted privilege escalation or sensor access requests may indicate exploitation attempts. Note that successful exploitation may leave minimal forensic trace, so focus detection on failed or crashed attempts and post-compromise indicators (unexpected process spawning, unauthorized sensor activation, network pivoting).

Why prioritize this

Although the CVSS score of 6.6 (Medium) reflects the high attack complexity and UI requirement, the scope of affected hardware, combined with the use-after-free nature of the flaw and potential for privilege escalation or cross-process impact, elevates practical risk for organizations with heterogeneous Qualcomm deployments. The lack of KEV inclusion suggests the threat has not yet reached widespread exploitation, but the vulnerability's lifecycle—having been published and patched—means patches must be deployed before researchers and adversaries fully weaponize it. Organizations should triage this as a moderate-to-high priority for mobile device and IoT asset management pipelines.

Risk score, explained

The CVSS 3.1 score of 6.6 reflects: local attack vector (contained to local system); high complexity (requires specific IOCTL sequencing and buffer state conditions); low privileges required (standard user context); UI interaction required (user action triggers vulnerable code path); and cross-boundary system impact (affects confidentiality, integrity, and availability). While the vector indicates Medium severity, the use-after-free root cause and broad hardware exposure warrant elevated business-context prioritization. Organizations heavily invested in Qualcomm-based infrastructure should treat this as a High priority for remediation planning, despite the standardized CVSS rating.

Frequently asked questions