CVE-2025-68656 Espressif ESP-IDF USB Host HID (Human Interface Device) Driver Descriptor Use-After-Free Vulnerability
A use-after-free in the ESP-IDF USB Host HID driver allows attackers to cause crashes or execute code via malicious descriptors.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-68656?
CVE-2025-68656 is a medium-severity use after free vulnerability in espressif esp-usb, published on 12 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Espressif ESP-IDF USB Host HID (Human Interface Device) Driver allows access to HID devices. Prior to 1.1.0, usb_class_request_get_descriptor() frees and reallocates hid_device->ctrl_xfer when an oversized descriptor is requested but continues to use the stale local pointer, leading to an immediate use-after-free when processing attacker-controlled Report Descriptor lengths. This vulnerability is fixed in 1.1.0.
Weakness: CWE-416
Which versions are affected by CVE-2025-68656?
It affects 1 product.
Products include Espressif Usb Host Hid Driver.
How do I fix CVE-2025-68656?
No fix has been published for CVE-2025-68656 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-68656 being exploited?
There is no known exploitation of CVE-2025-68656 in the wild and no public exploit code.
Other vulnerabilities in espressif esp-usb
Sources
Also known as GHSA-2pm2-62mr-c9x7.