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.
Published: 2026-05-18
Score: 5.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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History

Tue, 19 May 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 19 May 2026 08:45:00 +0000

Type Values Removed Values Added
First Time appeared Netbsd
Netbsd src
Vendors & Products Netbsd
Netbsd src

Mon, 18 May 2026 18:15:00 +0000

Type Values Removed Values Added
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.
Title NetBSD cryptodev Race Condition Double-Free via cryptodev_op()
Weaknesses CWE-362
CWE-415
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 5.7, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-19T12:20:20.500Z

Reserved: 2026-03-16T18:11:41.758Z

Link: CVE-2026-32848

cve-icon Vulnrichment

Updated: 2026-05-19T12:20:13.124Z

cve-icon NVD

Status : Deferred

Published: 2026-05-18T18:17:23.207

Modified: 2026-06-17T10:36:26.450

Link: CVE-2026-32848

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-19T08:18:50Z

Weaknesses