CVE-2024-49840 Use of Out-of-range Pointer Offset in WLAN Windows Host

High 7.8 Published Updated

Memory corruption in Qualcomm Snapdragon WLAN firmware allows attackers to execute arbitrary code or escalate privileges via malicious IOCTL calls.

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-2024-49840?

CVE-2024-49840 is a high-severity memory corruption vulnerability in Qualcomm Fastconnect 6900 Firmware, published on 3 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Memory corruption while Invoking IOCTL calls from user-space to validate FIPS encryption or decryption functionality.

Weakness: CWE-119, CWE-823

Which versions are affected by CVE-2024-49840?

It affects 10 products.

Products include Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qcc2073 Firmware, Qualcomm Qcc2076 Firmware, Qualcomm Sc8380xp Firmware, Qualcomm Wcd9380 Firmware and 4 more.

How do I fix CVE-2024-49840?

No fix has been published for CVE-2024-49840 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-2024-49840 being exploited?

There is no known exploitation of CVE-2024-49840 in the wild and no public exploit code.

All Qualcomm Fastconnect 6900 Firmware vulnerabilities

Sources

Also known as GHSA-wcp5-9f53-qpcq.

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