CVE-2023-1193

Name: CVE-2023-1193
Creator: NVD / NIST
Published: 2023-11-01T20:15:08.663+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2023-1193 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A use-after-free flaw was found in setup_async_work in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. This issue could allow an attacker to crash the system by accessing freed work.. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

A use-after-free flaw was found in setup_async_work in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. This issue could allow an attacker to crash the system by accessing freed work.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.05%

59.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 6.3
Linux	Linux Kernel	6.3

References

https://access.redhat.com/security/cve/CVE-2023-1193Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2154177Issue Tracking
https://lkml.kernel.org/linux-cifs/20230401084951.6085-2-linkinjeon@kernel.org/T/Mailing List, Patch
https://access.redhat.com/security/cve/CVE-2023-1193Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2154177Issue Tracking
https://lkml.kernel.org/linux-cifs/20230401084951.6085-2-linkinjeon@kernel.org/T/Mailing List, Patch

Timeline

Published: Nov 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-1193?

How severe is CVE-2023-1193?

CVE-2023-1193 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2023-1193?

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-2023-1193?

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

Scan your code now

Source: NVD / NIST