CVE-2021-3348

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CVSS 3.1

7.0 high

EPSS

<1%p16

Published

Feb 1, 2021 (Feb 1, 2021)

Modified

Jun 17, 2026

Description

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.

Vendors: linux debian
Products: linux kernel, debian linux
Weakness: CWE-362, CWE-416
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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