CVE-2025-21454 Buffer Over-read in WLAN Embedded SW
A buffer over-read in Qualcomm Snapdragon WLAN firmware allows attackers to cause a transient denial of service via crafted beacon frames.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-21454?
CVE-2025-21454 is a high-severity denial of service vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 8 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Transient DOS while processing received beacon frame.
Which versions are affected by CVE-2025-21454?
It affects 192 products.
Products include Qualcomm 315 5g Iot Modem Firmware, Qualcomm 9206 Lte Modem Firmware, Qualcomm Apq8017 Firmware, Qualcomm Apq8064au Firmware, Qualcomm Apq8076 Firmware, Qualcomm Aqt1000 Firmware and 186 more.
How do I fix CVE-2025-21454?
No fix has been published for CVE-2025-21454 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-2025-21454 being exploited?
There is no known exploitation of CVE-2025-21454 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm 315 5g Iot Modem Firmware
- CVE-2023-33107 Qualcomm Multiple Chipsets Integer Overflow
- CVE-2023-33063 Qualcomm Multiple Chipsets Use-After-Free
- CVE-2025-27034 Improper Validation of Array Index in Multi-Mode Call Processor
- CVE-2023-22388 Use of Out-of-range Pointer Offset in Multi-mode Call Processor
- CVE-2023-28578 Improper Input Validation in Services
Sources
Also known as GHSA-4h9h-q39g-qf8m.