What’s Vulnerable › Vulnerabilities

CVE-2025-68656: Espressif ESP-IDF USB Host HID (Human Interface Device) Driver Descriptor Use-After-Free Vulnerability

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-12 · updated 2026-06-17
• Weakness: CWE-416

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.

Affected products

• espressif esp-usb: before 1.1.0 — fixed in 1.1.0

How to fix

Upgrade to a fixed version: espressif esp-usb 1.1.0. Check the vendor advisory for mitigations.

References

• https://components.espressif.com/components/espressif/usb_host_hid/versions/1.1.0/changelog
• https://github.com/espressif/esp-usb/commit/81b37c96593c0bec92ef14c6ee6bf8cab8d8f660
• https://github.com/espressif/esp-usb/security/advisories/GHSA-2pm2-62mr-c9x7

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