CVE-2025-47343 Overview
CVE-2025-47343 is a memory corruption vulnerability that occurs while processing a video session to set video parameters. This vulnerability is classified under CWE-822 (Untrusted Pointer Dereference), indicating that the affected component improperly handles pointer references during video parameter processing, potentially allowing an attacker to corrupt memory and execute arbitrary code.
Critical Impact
This local attack vector vulnerability enables attackers with low privileges to achieve high impact on confidentiality, integrity, and availability of affected systems, potentially leading to complete device compromise.
Affected Products
- Qualcomm chipset components (video processing subsystem)
- Devices utilizing affected Qualcomm video drivers
- Mobile and embedded systems with vulnerable firmware
Discovery Timeline
- 2026-01-07 - CVE CVE-2025-47343 published to NVD
- 2026-01-08 - Last updated in NVD database
Technical Details for CVE-2025-47343
Vulnerability Analysis
This vulnerability involves an untrusted pointer dereference (CWE-822) within the video session processing component. When a video session attempts to configure video parameters, the underlying driver or firmware fails to properly validate pointer references before use. This creates a condition where a malicious or malformed input can cause the system to dereference an attacker-controlled pointer, leading to memory corruption.
The local attack vector requires an attacker to have initial access to the target device, though only low-level privileges are needed to trigger the vulnerability. Once exploited, the impact is severe across all three security dimensions—confidentiality, integrity, and availability—suggesting the possibility of arbitrary code execution, data manipulation, or system crashes.
Root Cause
The root cause of CVE-2025-47343 lies in insufficient validation of pointer values during video parameter processing. The affected code path accepts pointer references without verifying they point to valid, authorized memory regions. This untrusted pointer dereference allows attackers to manipulate where memory read or write operations occur, bypassing normal memory safety protections.
Attack Vector
The attack is executed locally on the target device. An attacker with low-privilege access can craft malicious video session requests that include corrupted or attacker-controlled pointer values. When the video subsystem processes these parameters, it dereferences the untrusted pointer, potentially:
- Causing memory corruption in critical system areas
- Enabling arbitrary read/write primitives
- Facilitating privilege escalation to kernel or root level
- Triggering denial of service through system instability
The vulnerability does not require user interaction, meaning it can be exploited through automated processes or background services that handle video operations.
Detection Methods for CVE-2025-47343
Indicators of Compromise
- Unexpected crashes or kernel panics in video processing subsystems
- Anomalous memory access patterns in video driver modules
- System instability when video encoding or decoding operations are performed
- Suspicious processes attempting to interact with video session interfaces with unusual parameters
Detection Strategies
- Monitor system logs for video driver crashes or memory access violations
- Implement runtime integrity monitoring for video processing components
- Deploy endpoint detection solutions capable of identifying memory corruption exploitation attempts
- Audit processes accessing video session APIs for unauthorized or malformed requests
Monitoring Recommendations
- Enable verbose logging for video driver operations where available
- Configure crash dump analysis for video subsystem components
- Implement behavioral monitoring for processes interacting with video hardware interfaces
- Track firmware and driver version inventories to identify unpatched systems
How to Mitigate CVE-2025-47343
Immediate Actions Required
- Review the Qualcomm January 2026 Security Bulletin for affected chipsets and patch availability
- Apply vendor-provided firmware and driver updates as soon as they become available
- Restrict local access to devices running vulnerable firmware
- Implement application-level sandboxing for processes that interact with video subsystems
Patch Information
Qualcomm has addressed this vulnerability in their January 2026 Security Bulletin. Device manufacturers and OEMs should obtain updated firmware packages from Qualcomm and push updates to end-user devices through their standard update mechanisms. End users should ensure their devices are running the latest available security patches.
For detailed patch information and affected product lists, refer to the Qualcomm January 2026 Security Bulletin.
Workarounds
- Limit local access to affected devices to trusted users only
- Disable or restrict video-related features if not required for critical operations
- Implement additional access controls around video processing interfaces
- Deploy endpoint protection solutions with memory corruption detection capabilities
- Monitor for exploitation attempts while awaiting patch deployment
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
