CVE-2026-32848

MEDIUM

NetBSD cryptodev Race Condition Double-Free via cryptodev_op()

Title source: cna
STIX 2.1

Description

NetBSD prior to commit ec8451e contains a race condition vulnerability in cryptodev_op() within the opencrypto subsystem that allows local attackers to trigger a double-free condition by concurrently issuing CIOCCRYPT operations on the same session identifier on SMP systems. Attackers can exploit mutable per-operation state embedded in the csession struct to corrupt kernel heap memory.

Scores

CVSS v3 4.7
EPSS 0.0001
EPSS Percentile 1.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-362 CWE-415
Status published
Products (1)
NetBSD/src < ec8451efc1565516aba9e7047e1a1a1ce7953a2f
Published May 18, 2026
Tracked Since May 19, 2026