CVE-2023-5345

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve local privilege escalation.

In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free.

We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxKernel>= 0.0, < 6.6

References

Timeline

Published
Oct 3, 2023
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2023-5345: High severity, CVSS 7.8 | Vulnix