CVE-2021-1966 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Medium 6.7 Published 20 Oct 2021 Updated 3 Aug 2024

A buffer overflow in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code or escalate privileges via improper length checks.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2021-1966?

CVE-2021-1966 is a medium-severity memory corruption vulnerability in Qualcomm Aqt1000 Firmware, published on 20 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Possible buffer overflow due to lack of length check of source and destination buffer before copying in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Weakness: CWE-120

Which versions are affected by CVE-2021-1966?

It affects 65 products.

Products include Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Fsm10055 Firmware and 59 more.

How do I fix CVE-2021-1966?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-1966 being exploited?

There is no known exploitation of CVE-2021-1966 in the wild and no public exploit code.

All Qualcomm Aqt1000 Firmware vulnerabilities

Sources

Also known as 2819521, A-184564101, GHSA-p3q7-f8c3-cqvc, PUB-A-184564101.