CVE-2022-33256 Improper validation of array index in Multi-mode call processor

Critical 9.8 Published Updated

An attacker can exploit improper array index validation in the Multi-mode call processor to cause memory corruption, potentially leading to code execution or privilege escalation.

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-2022-33256?

CVE-2022-33256 is a critical memory corruption vulnerability in Qualcomm Ar8035 Firmware, published on 7 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Memory corruption due to improper validation of array index in Multi-mode call processor.

Weakness: CWE-129

Which versions are affected by CVE-2022-33256?

It affects 65 products.

Products include Qualcomm Ar8035 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6421 Firmware, Qualcomm Qca6426 Firmware, Qualcomm Qca6431 Firmware and 59 more.

How do I fix CVE-2022-33256?

No fix has been published for CVE-2022-33256 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-2022-33256 being exploited?

There is no known exploitation of CVE-2022-33256 in the wild and no public exploit code.

All Qualcomm Ar8035 Firmware vulnerabilities

Sources

Also known as GHSA-j3g9-2f89-wh5p.

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