CVE-2026-21384 Out-of-bounds Write in Camera Driver
An out-of-bounds write in the Qualcomm Snapdragon camera driver allows attackers to execute arbitrary code or escalate privileges via invalid port indices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21384?
CVE-2026-21384 is a medium-severity memory corruption vulnerability in Qualcomm Fastconnect 6700 Firmware, published on 6 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory Corruption when updating prepared commands with invalid port indices based on user space input exceeds supported read client limits.
Weakness: CWE-787
Which versions are affected by CVE-2026-21384?
It affects 79 products.
Products include Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Lemans Au Lgit Firmware, Qualcomm Lemansau Firmware, Qualcomm Netrani Firmware and 73 more.
How do I fix CVE-2026-21384?
No fix has been published for CVE-2026-21384 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-2026-21384 being exploited?
There is no known exploitation of CVE-2026-21384 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Fastconnect 6700 Firmware
- CVE-2024-43047 Qualcomm Multiple Chipsets Use-After-Free
- CVE-2023-21671 Improper Input Validation in Core
- CVE-2024-21464 Buffer Copy Without Checking Size of Input in Data Network Stack & Connectivity
- CVE-2024-33047 Buffer Over-read in Display
- CVE-2024-23360 Improper Access Control in Graphics Windows
Sources
Also known as GHSA-wj36-3pgh-3jfq.