CVE-2021-35086 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

High 7.5 Published 14 Jun 2022 Updated 4 Aug 2024

A buffer over-read in Qualcomm Snapdragon chipsets allows attackers to cause denial of service or disclose sensitive information via malformed NR system information messages.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-35086?

CVE-2021-35086 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 Firmware, published on 14 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Possible buffer over read due to improper validation of SIB type when processing a NR system Information message in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

Weakness: CWE-125

Which versions are affected by CVE-2021-35086?

It affects 55 products.

Products include Qualcomm Ar8035 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6421 Firmware, Qualcomm Qca6426 Firmware, Qualcomm Qca6431 Firmware and 49 more.

How do I fix CVE-2021-35086?

No fix has been published for CVE-2021-35086 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-2021-35086 being exploited?

There is no known exploitation of CVE-2021-35086 in the wild and no public exploit code.

All Qualcomm Ar8035 Firmware vulnerabilities

Sources

Also known as GHSA-r87f-9f24-wjpc.