CVE-2023-33042 Improper Input Validation in Modem
A transient denial of service vulnerability in the Qualcomm Snapdragon modem firmware allows attackers to disrupt connectivity via RRC Setup messages.
- 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-2023-33042?
CVE-2023-33042 is a high-severity denial of service vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 5 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Transient DOS in Modem after RRC Setup message is received.
Weakness: CWE-20
Which versions are affected by CVE-2023-33042?
It affects 74 products.
Products include Qualcomm 315 5g Iot Modem Firmware, Qualcomm Ar8035 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6421 Firmware, Qualcomm Qca6426 Firmware and 68 more.
How do I fix CVE-2023-33042?
No fix has been published for CVE-2023-33042 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-2023-33042 being exploited?
There is no known exploitation of CVE-2023-33042 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-m5xw-3jph-chxg.