Qualcomm QCA WiFi NAN DoS via Excessive Service Data Frame Length
CVE-2026-21381 Published on April 6, 2026

Buffer Over-read in WLAN Firmware
Transient DOS when receiving a service data frame with excessive length during device matching over a neighborhood awareness network protocol connection.

NVD

Vulnerability Analysis

CVE-2026-21381 can be exploited with network access, requires user interaction and user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
HIGH
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Buffer Over-read

The software reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. This typically occurs when the pointer or its index is incremented to a position beyond the bounds of the buffer or when pointer arithmetic results in a position outside of the valid memory location to name a few. This may result in exposure of sensitive information or possibly a crash.


Products Associated with CVE-2026-21381

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Qualcomm Snapdragon
 

Affected Versions

Qualcomm, Inc. Snapdragon: