CVE-2025-27042 Incorrect Calculation of Buffer Size in Video

High 7.8 Published Updated

An integer overflow in Qualcomm Snapdragon video firmware allows memory corruption and potential code execution when processing video packets.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2025-27042?

CVE-2025-27042 is a high-severity vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 8 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Memory corruption while processing video packets received from video firmware.

Weakness: CWE-131

Which versions are affected by CVE-2025-27042?

It affects 344 products.

Products include Qualcomm 215 Mobile Firmware, Qualcomm 315 5g Iot Modem Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm C-V2x 9150 Firmware and 338 more.

How do I fix CVE-2025-27042?

Apply the vendor's patch.

Is CVE-2025-27042 being exploited?

There is no known exploitation of CVE-2025-27042 in the wild and no public exploit code.

All Qualcomm 315 5g Iot Modem Firmware vulnerabilities

Sources

Also known as 3935673, A-409047250, ASB-A-409047250, GHSA-m7f9-7vr6-8wcw.

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