CVE-2025-27034 Improper Validation of Array Index in Multi-Mode Call Processor
An attacker can exploit improper array index validation in Qualcomm Snapdragon firmware to cause memory corruption, potentially leading to code execution or privilege escalation.
- 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-2025-27034?
CVE-2025-27034 is a critical memory corruption vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 24 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Memory corruption while selecting the PLMN from SOR failed list.
Weakness: CWE-129
Which versions are affected by CVE-2025-27034?
It affects 113 products.
Products include Qualcomm 315 5g Iot Modem Firmware, Qualcomm Ar8035 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware and 107 more.
How do I fix CVE-2025-27034?
No fix has been published for CVE-2025-27034 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-27034 being exploited?
There is no known exploitation of CVE-2025-27034 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-2023-22388 Use of Out-of-range Pointer Offset in Multi-mode Call Processor
- CVE-2023-28578 Improper Input Validation in Services
- CVE-2023-33072 Buffer copy without checking size of Input in Core
Sources
Also known as GHSA-h8cv-cjqh-899m.