CVE-2025-68622CWE-121

Espressif ESP-IDF USB Host UVC Class Driver has a stack buffer overflow in UVC descriptor printing

Medium · published January 12, 2026

CVSS v3.1
6.8
EPSS
0%
Percentile
15.1
In the wild
Unconfirmed
What it is

Espressif ESP-IDF USB Host UVC Class Driver allows video streaming from USB cameras. Prior to 2.4.0, a vulnerability in the esp-usb UVC host implementation allows a malicious USB Video Class (UVC) device to trigger a stack buffer overflow during configuration-descriptor parsing. When UVC configuration-descriptor printing is enabled, the host prints detailed descriptor information provided by the connected USB device. A specially crafted UVC descriptor may advertise an excessively large length. Because this value is not validated before being copied into a fixed-size stack buffer, an attacker can overflow the buffer and corrupt memory. This vulnerability is fixed in 2.4.0.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00247 · 15.1th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-01-12T17:08Z
EPSS history
Timeline
  • 12 JAN 17:08Z
    Espressif ESP-IDF USB Host UVC Class Driver has a stack buffer overflow in UVC descriptor printing
    cvelistv5