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Vulnerability record · CVE-2023-6606 · published 8 December 2023

CVE-2023-6606: Linux kernel out-of-bounds read vulnerability

Linux · Linux Kernel

An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.

7.1 CVSS 3.1 High EPSS 0.53% · top 57.3% CWE-125 · Out-of-bounds read
7.1CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
24References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.

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

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2024:0723 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0725 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0881 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0897 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1188 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1248 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1404 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2094 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6606 Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=218218 ExploitIssue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2253611 ExploitIssue Tracking
https://access.redhat.com/errata/RHSA-2024:0723 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0725 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0881 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0897 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1188 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1248 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1404 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2094 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6606 Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=218218 ExploitIssue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2253611 ExploitIssue Tracking
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html

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Source: NIST National Vulnerability Database (record CVE-2023-6606), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.