CVE-2022-2031

Name: CVE-2022-2031
Creator: NVD / NIST
Published: 2022-08-25T18:15:09.837+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.97%

Last modified Jun 17, 2026

CVE-2022-2031 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. EPSS estimates a 0.97% chance of exploitation in the next 30 days.

Description

A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.97%

57.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Samba	Samba	< 4.14.14
Samba	Samba	>= 4.15.0, < 4.15.9
Samba	Samba	>= 4.16.0, < 4.16.4

References

Timeline

Published: Aug 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-2031?

How severe is CVE-2022-2031?

CVE-2022-2031 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.97% probability of exploitation in the next 30 days.

How do I fix CVE-2022-2031?

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-2022-2031?

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

Scan your code now

Source: NVD / NIST