CVE-2023-1194

Name: CVE-2023-1194
Creator: NVD / NIST
Published: 2023-11-03T08:15:07.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.08%

Last modified Jun 17, 2026

CVE-2023-1194 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. When an attacker sends the CREATE command with a malformed payload to KSMBD, due to a missing check of `NameOffset` in the `parse_lease_state()` function, the `create_context` object can access invalid memory.. EPSS estimates a 1.08% chance of exploitation in the next 30 days.

Description

An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. When an attacker sends the CREATE command with a malformed payload to KSMBD, due to a missing check of `NameOffset` in the `parse_lease_state()` function, the `create_context` object can access invalid memory.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

1.08%

60.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	>= 5.15, < 5.15.145	—
Linux	Linux Kernel	>= 5.16, < 6.1.34	—
Linux	Linux Kernel	>= 6.2, < 6.3.8	—
Linux	Linux Kernel	6.4	Rc1
Fedoraproject	Fedora	37	—

References

https://access.redhat.com/security/cve/CVE-2023-1194Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2154176Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20231221-0006/Third Party Advisory
https://www.spinics.net/lists/stable-commits/msg303065.htmlMailing List, Patch
https://access.redhat.com/security/cve/CVE-2023-1194Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2154176Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20231221-0006/Third Party Advisory
https://www.spinics.net/lists/stable-commits/msg303065.htmlMailing List, Patch

Timeline

Published: Nov 3, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-1194?

How severe is CVE-2023-1194?

CVE-2023-1194 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.08% probability of exploitation in the next 30 days.

How do I fix CVE-2023-1194?

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-2023-1194?

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

Scan your code now

Source: NVD / NIST