CVE-2025-47402 Buffer Over-read in WLAN Firmware
A buffer over-read in Qualcomm Snapdragon WLAN firmware allows attackers to cause a transient denial of service by sending a malicious frame.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-47402?
CVE-2025-47402 is a medium-severity denial of service vulnerability in Qualcomm Ar8035 Firmware, published on 2 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Transient DOS when processing a received frame with an excessively large authentication information element.
Which versions are affected by CVE-2025-47402?
It affects 94 products.
Products include Qualcomm Ar8035 Firmware, Qualcomm Cologne Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Fwa Gen 3 Ultra Firmware, Qualcomm Lemans Au Lgit Firmware and 88 more.
How do I fix CVE-2025-47402?
No fix has been published for CVE-2025-47402 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-47402 being exploited?
There is no known exploitation of CVE-2025-47402 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Ar8035 Firmware
- CVE-2023-33106 Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset
- CVE-2024-45569 Improper Validation of Array Index in WLAN Host Communication
- CVE-2024-21473 Improper Input Validation in WIN SON
- CVE-2023-28582 Buffer Copy Without Checking Size of Input in Data Modem
- CVE-2023-43552 Use After Free in WLAN Host Communication
Sources
Also known as GHSA-j3r9-x7xr-wvfg.