CVE-2026-25268 in Snapdragon
Summary
by MITRE • 07/06/2026
Memory Corruption when processing invalid HT40 channel layouts during dynamic channel switching operations.
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Analysis
by VulDB Data Team • 07/06/2026
This vulnerability represents a critical memory corruption issue that occurs during dynamic channel switching operations when processing invalid HT40 channel layouts within wireless network infrastructure. The flaw manifests when devices attempt to dynamically switch channels while handling 802.11n HT40 (High Throughput 40 MHz) channel configurations, specifically when the channel layout information becomes malformed or improperly structured. The underlying technical mechanism involves improper input validation and memory management during the channel switching process where the system fails to properly sanitize or validate the channel layout parameters before processing them in memory structures.
The operational impact of this vulnerability extends across wireless networking equipment including access points, wireless controllers, and network infrastructure devices that support dynamic channel switching capabilities. When exploited, this memory corruption can lead to device crashes, system instability, or potentially remote code execution depending on the implementation details and the specific wireless hardware involved. Attackers could leverage this weakness by forcing malformed HT40 channel layout information during legitimate channel switching operations, causing the target device to process corrupted memory structures that may result in denial of service conditions or arbitrary code execution within the affected system context.
From a cybersecurity perspective, this vulnerability aligns with CWE-121, which addresses stack-based buffer overflow conditions, and CWE-122, covering heap-based buffer overflow scenarios. The weakness fundamentally stems from inadequate bounds checking and memory management practices when processing dynamic channel information during wireless network operations. The ATT&CK framework categorizes this under T1499.003 for Network Denial of Service and potentially T1566.002 for Phishing via Social Engineering if the attack vector involves诱导 users to trigger the vulnerable channel switching conditions.
Mitigation strategies should focus on implementing robust input validation mechanisms that thoroughly check HT40 channel layout parameters before processing them during dynamic channel operations. Network administrators should ensure firmware updates are applied promptly to address known implementations of this vulnerability, while also configuring strict channel layout validation rules within wireless infrastructure. Additional protective measures include implementing network segmentation to limit exposure, monitoring for anomalous channel switching patterns, and establishing proper error handling procedures that prevent memory corruption from escalating into more severe system compromise scenarios through proper memory sanitization and bounds checking mechanisms during wireless channel configuration operations.