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CVE · referencelatest edition

Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2023-6606

CVE-2023-6606HIGH
Red Hat Red Hat Enterprise Linux 8 — Kernel: out-of-bounds read vulnerability in smbcalcsize
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  N  H    7.1   .0053   43.3     —
AFFECTED
  Product                                                  Versions     Fixed
  Red Hat Enterprise Linux 8                               unspecified  0:4.18.0-513.18.1.rt7.320.el8_9
  Red Hat Enterprise Linux 8                               unspecified  0:4.18.0-513.18.1.el8_9
  Red Hat Enterprise Linux 8.6 Extended Update Support     unspecified  0:4.18.0-372.95.1.el8_6
  Red Hat Enterprise Linux 8.8 Extended Update Support     unspecified  0:4.18.0-477.51.1.el8_8
  Red Hat Enterprise Linux 9                               unspecified  0:5.14.0-362.24.1.el9_3
  Red Hat Enterprise Linux 9                               unspecified  0:5.14.0-362.24.1.el9_3
  Red Hat Enterprise Linux 9.2 Extended Update Support     unspecified  0:5.14.0-284.52.1.el9_2
  Red Hat Enterprise Linux 9.2 Extended Update Support     unspecified  0:5.14.0-284.52.1.rt14.337.el9_2
  Red Hat Virtualization 4 for Red Hat Enterprise Linux 8  unspecified  0:4.18.0-372.95.1.el8_6
  RHOL-5.8-RHEL-9                                          unspecified  v5.8.6-22
  + 20 more
TIMELINE
  Dec 8   Reserved by redhat
  Dec 8   Published (CNA: redhat)
  Oct 14  EXPLOIT PUBLISHED — CVE-2023-6606 (Red Hat Enterprise Linux 8). Public exploit reference added.
CWE-125 · CNA: redhat · CVSS v3.1 · 15 references · NVD status: Modified

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.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
December 8, 2023ReservedReserved by redhat
December 8, 2023PublishedPublished (CNA: redhat)
October 14, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2023-6606 (Red Hat Enterprise Linux 8). Public exploit reference added.

Affected

Affected products and packages — 30 rows
VendorProduct / PackageEcosystemVersion introducedFixed
Red HatRed Hat Enterprise Linux 8——0:4.18.0-513.18.1.rt7.320.el8_9
Red HatRed Hat Enterprise Linux 8——0:4.18.0-513.18.1.el8_9
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support——0:4.18.0-372.95.1.el8_6
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support——0:4.18.0-477.51.1.el8_8
Red HatRed Hat Enterprise Linux 9——0:5.14.0-362.24.1.el9_3
Red HatRed Hat Enterprise Linux 9——0:5.14.0-362.24.1.el9_3
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support——0:5.14.0-284.52.1.el9_2
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support——0:5.14.0-284.52.1.rt14.337.el9_2
Red HatRed Hat Virtualization 4 for Red Hat Enterprise Linux 8——0:4.18.0-372.95.1.el8_6
Red HatRHOL-5.8-RHEL-9——v5.8.6-22
Red HatRHOL-5.8-RHEL-9——v5.8.6-11
Red HatRHOL-5.8-RHEL-9——v6.8.1-407
Red HatRHOL-5.8-RHEL-9——v5.8.6-19
Red HatRHOL-5.8-RHEL-9——v1.0.0-479
Red HatRHOL-5.8-RHEL-9——v5.8.6-7
Red HatRHOL-5.8-RHEL-9——v0.4.0-247
Red HatRHOL-5.8-RHEL-9——v5.8.6-5
Red HatRHOL-5.8-RHEL-9——v1.1.0-227
Red HatRHOL-5.8-RHEL-9——v5.8.1-470
Red HatRHOL-5.8-RHEL-9——v2.9.6-14
Red HatRHOL-5.8-RHEL-9——v5.8.6-2
Red HatRHOL-5.8-RHEL-9——v5.8.6-24
Red HatRHOL-5.8-RHEL-9——v5.8.6-10
Red HatRHOL-5.8-RHEL-9——v0.1.0-525
Red HatRHOL-5.8-RHEL-9——v0.1.0-224
Red HatRHOL-5.8-RHEL-9——v0.28.1-56
Red HatRed Hat Enterprise Linux 6———
Red HatRed Hat Enterprise Linux 7———
Red HatRed Hat Enterprise Linux 7———
Red HatRed Hat Enterprise Linux 9———

Weaknesses

CWE-125

References (15)

Related

Authoritative record: CVE-2023-6606 at cve.org

Vendors: red hat

Weaknesses: CWE-125

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-6606 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.