CVE-2021-1957 Security feature bypass in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Medium 6.5 Published 9 Sep 2021 Updated 3 Aug 2024

Attackers can bypass ACL link encryption and maintain unauthorized connections during reconnection in Qualcomm Snapdragon devices.

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

What is CVE-2021-1957?

CVE-2021-1957 is a medium-severity vulnerability in Qualcomm Apq8017 Firmware, published on 9 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper Access Control when ACL link encryption is failed and ACL link is not disconnected during reconnection with paired device in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Which versions are affected by CVE-2021-1957?

It affects 46 products.

Products include Qualcomm Apq8017 Firmware, Qualcomm Qca6174a Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6421 Firmware, Qualcomm Qca6426 Firmware and 40 more.

How do I fix CVE-2021-1957?

Apply the vendor's patch.

Is CVE-2021-1957 being exploited?

There is no known exploitation of CVE-2021-1957 in the wild and no public exploit code.

All Qualcomm Apq8017 Firmware vulnerabilities

Sources

Also known as 2427750, A-181677124, GHSA-8pqm-hrrp-373j, PUB-A-181677124.