CVE-2025-21430 Buffer Over-read in WLAN Host
A buffer over-read in the WLAN host allows a transient denial of service when connecting a station to an access point.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-21430?
CVE-2025-21430 is a high-severity denial of service vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 7 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Transient DOS while connecting STA to AP and initiating ADD TS request from AP to establish TSpec session.
Weakness: CWE-126
Which versions are affected by CVE-2025-21430?
It affects 225 products.
Products include Qualcomm 315 5g Iot Modem Firmware, Qualcomm Apq8017 Firmware, Qualcomm Apq8064au Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware and 219 more.
How do I fix CVE-2025-21430?
Apply the vendor's patch.
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-2025-21430 being exploited?
There is no known exploitation of CVE-2025-21430 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 3910625, A-388047866, ASB-A-388047866, GHSA-c8ww-p8qh-gjr8.