Qualcomm Modem Firmware DOS via Zero-Sized Config Override
CVE-2026-57546 Published on October 6, 2026
Buffer Over-read in WLAN HAL
Transient DOS when processing a continuous receive command with a zero-sized global configuration override.
Vulnerability Analysis
CVE-2026-57546 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
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-2026-57546
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Affected Versions
Qualcomm, Inc. Snapdragon:- Version Congo is affected.
- Version Qualcomm FastConnect 8800 Mobile Connectivity System is affected.