CVE-2026-25271 Time-of-check Time-of-use (TOCTOU) Race Condition in DSP Service

High 7.8 Published 6 Jul 2026 Updated 7 Jul 2026

A race condition in the Qualcomm Snapdragon DSP service allows attackers to trigger memory corruption, potentially leading to code execution or privilege escalation.

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-2026-25271?

CVE-2026-25271 is a high-severity vulnerability in Qualcomm Cologne 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 processing asynchronous input parameters due to improper handling of modified values between check and use.

Weakness: CWE-367

Which versions are affected by CVE-2026-25271?

It affects 21 products.

Products include Qualcomm Cologne Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Iqx5121 Firmware, Qualcomm Iqx7181 Firmware, Qualcomm Qca0000 Firmware and 15 more.

How do I fix CVE-2026-25271?

No fix has been published for CVE-2026-25271 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-25271 being exploited?

There is no known exploitation of CVE-2026-25271 in the wild and no public exploit code.

All Qualcomm Cologne Firmware vulnerabilities

Sources

Also known as GHSA-hmx9-2rg5-jc4p.