CVE-2022-33211 Improper Input Validation in MODEM

Critical 9.8 Published 4 Apr 2023 Updated 3 Aug 2024

An attacker can exploit improper input validation in the Qualcomm modem 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-2022-33211?

CVE-2022-33211 is a critical memory corruption vulnerability in Qualcomm Mdm8207 Firmware, published on 4 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

memory corruption in modem due to improper check while calculating size of serialized CoAP message

Weakness: CWE-131, CWE-20

Which versions are affected by CVE-2022-33211?

It affects 12 products.

Products include Qualcomm Mdm8207 Firmware, Qualcomm Mdm9205 Firmware, Qualcomm Mdm9206 Firmware, Qualcomm Mdm9207 Firmware, Qualcomm Qca4004 Firmware, Qualcomm Qts110 Firmware and 6 more.

How do I fix CVE-2022-33211?

No fix has been published for CVE-2022-33211 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-2022-33211 being exploited?

There is no known exploitation of CVE-2022-33211 in the wild and no public exploit code.

All Qualcomm Mdm8207 Firmware vulnerabilities

Sources

Also known as GHSA-c2xr-v86f-v878.