CVE-2021-1894 Security feature bypass in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

High 7.1 Published 3 Jan 2022 Updated 3 Aug 2024

Attackers can bypass TrustZone security controls due to improper error handling in signing key management on Qualcomm Snapdragon platforms.

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-2021-1894?

CVE-2021-1894 is a high-severity vulnerability in Qualcomm Ar8031 Firmware, published on 3 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper access control in TrustZone due to improper error handling while handling the signing key in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

Weakness: CWE-755

Which versions are affected by CVE-2021-1894?

It affects 117 products.

Products include Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Csrb31024 Firmware, Qualcomm Fsm10055 Firmware and 111 more.

How do I fix CVE-2021-1894?

No fix has been published for CVE-2021-1894 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-1894 being exploited?

There is no known exploitation of CVE-2021-1894 in the wild and no public exploit code.

All Qualcomm Ar8031 Firmware vulnerabilities

Sources

Also known as GHSA-xp4j-8vqv-q337.