Vulnerability Database

318,388

Total vulnerabilities in the database

CVE-2021-3625

Buffer overflow in Zephyr USB DFU DNLOAD. Zephyr versions >= v2.5.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3gr-hgvr-f363

  • Published: Oct 5, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-3625
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.6
  • AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
zephyrproject / zephyr 2.5.0 2.7.0