CVE-2023-3268

Name: CVE-2023-3268
Creator: NVD / NIST
Published: 2023-06-16T19:15:14.707+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2023-3268 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel internal information.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel internal information.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.47%

37.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 6.4
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0
Debian	Debian Linux	12.0

References

https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2Mailing List, Release Notes
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43ec16f1450f4936025a9bdf1a273affdb9732c1Patch
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
https://lore.kernel.org/lkml/1682238502-1892-1-git-send-email-yangpc%40wangsu.com/T/
https://security.netapp.com/advisory/ntap-20230824-0006/Third Party Advisory
https://www.debian.org/security/2023/dsa-5448Third Party Advisory
https://www.debian.org/security/2023/dsa-5480Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2Mailing List, Release Notes
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43ec16f1450f4936025a9bdf1a273affdb9732c1Patch
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
https://lore.kernel.org/lkml/1682238502-1892-1-git-send-email-yangpc%40wangsu.com/T/
https://security.netapp.com/advisory/ntap-20230824-0006/Third Party Advisory
https://www.debian.org/security/2023/dsa-5448Third Party Advisory
https://www.debian.org/security/2023/dsa-5480Third Party Advisory

Timeline

Published: Jun 16, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-3268?

How severe is CVE-2023-3268?

CVE-2023-3268 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3268?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3268?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST