Vulnerability Database

319,592

Total vulnerabilities in the database

CVE-2021-3348

nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.

  • Published: Feb 1, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-3348
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7
  • AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.4
  • AV:L/AC:M/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
linux / linux_kernel - 5.10.12.x
debian / debian_linux 9.0 9.0.x