CVE-2022-40521 Improper authorization in Modem
An attacker can cause a transient denial of service in Qualcomm Snapdragon modems due to improper authorization checks.
- 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-2022-40521?
CVE-2022-40521 is a high-severity missing authorization vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 6 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Transient DOS due to improper authorization in Modem
Which versions are affected by CVE-2022-40521?
It affects 242 products.
Products include Qualcomm 315 5g Iot Modem Firmware, Qualcomm 8953pro Firmware, Qualcomm 9205 Lte Modem Firmware, Qualcomm 9206 Lte Modem Firmware, Qualcomm 9207 Lte Modem Firmware, Qualcomm Apq5053-Aa Firmware and 236 more.
How do I fix CVE-2022-40521?
No fix has been published for CVE-2022-40521 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2022-40521 being exploited?
There is no known exploitation of CVE-2022-40521 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-8f4c-mxmx-gjgv.