CVE-2023-54110 usb: rndis_host: Secure rndis_query check against int overflow
An integer overflow in the Linux kernel RNDIS host driver allows attackers to leak sensitive information via crafted USB responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-54110?
CVE-2023-54110 is a vulnerability in Linux, published on 24 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
usb: rndis_host: Secure rndis_query check against int overflow
Variables off and len typed as uint32 in rndis_query function are controlled by incoming RNDIS response message thus their value may be manipulated. Setting off to a unexpectetly large value will cause the sum with len and 8 to overflow and pass the implemented validation step. Consequently the response pointer will be referring to a location past the expected buffer boundaries allowing information leakage e.g. via RNDIS_OID_802_3_PERMANENT_ADDRESS OID.
Which versions are affected by CVE-2023-54110?
How do I fix CVE-2023-54110?
Apply the vendor's patch.
Is CVE-2023-54110 being exploited?
There is no known exploitation of CVE-2023-54110 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-54110, DEBIAN-CVE-2023-54110, GHSA-cffh-ppgh-4vqx, UBUNTU-CVE-2023-54110.