CVE-2020-11256 Memory corruption in Snapdragon Wired Infrastructure and Networking

High 8.8 Published 9 Jun 2021 Updated 4 Aug 2024

Memory corruption in Snapdragon Wired Infrastructure allows attackers to execute arbitrary code or escalate privileges via unvalidated pointers.

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-2020-11256?

CVE-2020-11256 is a high-severity memory corruption vulnerability in Qualcomm Csr8811 Firmware, published on 9 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Memory corruption due to lack of check of validation of pointer to buffer passed to trustzone in Snapdragon Wired Infrastructure and Networking

Weakness: CWE-119

Which versions are affected by CVE-2020-11256?

It affects 26 products.

Products include Qualcomm Ar7420 Firmware, Qualcomm Ar9580 Firmware, Qualcomm Csr8811 Firmware, Qualcomm Ipq4018 Firmware, Qualcomm Ipq4019 Firmware, Qualcomm Ipq4028 Firmware and 20 more.

How do I fix CVE-2020-11256?

No fix has been published for CVE-2020-11256 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-2020-11256 being exploited?

There is no known exploitation of CVE-2020-11256 in the wild and no public exploit code.

All Qualcomm Csr8811 Firmware vulnerabilities

Sources

Also known as GHSA-mr4q-c5gm-372q.