CVE-2026-25262 Write-what-where Condition in Primary Bootloader
A write-what-where condition in the Qualcomm Snapdragon Primary Bootloader allows attackers to execute arbitrary code via a crafted ELF file.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-25262?
CVE-2026-25262 is a medium-severity memory corruption vulnerability in Qualcomm Mdm9207 Firmware, published on 22 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Memory corruption while processing a crafted ELF file in the Primary Bootloader.
Weakness: CWE-123
Which versions are affected by CVE-2026-25262?
It affects 8 products.
Products include Qualcomm Mdm9207 Firmware, Qualcomm Mdm9645 Firmware, Qualcomm Mdm9655 Firmware, Qualcomm Mdm9665 Firmware, Qualcomm Msm8909 Firmware, Qualcomm Msm8916 Firmware and 2 more.
How do I fix CVE-2026-25262?
No fix has been published for CVE-2026-25262 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-2026-25262 being exploited?
There is no known exploitation of CVE-2026-25262 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Sources
Also known as GHSA-3rc4-4v6f-jmj2.