CVE-2026-21382 Buffer Copy Without Checking Size of Input in Power Management IC

High 7.8 Published 6 Apr 2026 Updated 7 Apr 2026

Attacker can exploit buffer overflow in Qualcomm Snapdragon power management IC to execute arbitrary code or escalate privileges.

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-2026-21382?

CVE-2026-21382 is a high-severity memory corruption vulnerability in Qualcomm Cologne Firmware, published on 6 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Memory Corruption when handling power management requests with improperly sized input/output buffers.

Weakness: CWE-120

Which versions are affected by CVE-2026-21382?

It affects 19 products.

Products include Qualcomm Cologne Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qca0000 Firmware, Qualcomm Sc8380xp Firmware, Qualcomm Wcd9378c Firmware and 13 more.

How do I fix CVE-2026-21382?

No fix has been published for CVE-2026-21382 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-2026-21382 being exploited?

There is no known exploitation of CVE-2026-21382 in the wild and no public exploit code.

All Qualcomm Cologne Firmware vulnerabilities

Sources

Also known as GHSA-m3w8-q34w-8f9j.