Is CVE-2022-2031 in the CISA KEV catalog?

No. CVE-2022-2031 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-2031?

CVE-2022-2031 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2022-2031?

CVE-2022-2031 has an EPSS score of 0.97% (57th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-2031?

Upgrade samba on debian 11 to 2:4.13.13+dfsg-1~deb11u5 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-2031

HIGH

8.8

CVSS v3

NVD

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.

CWE-288 CWE-287Improper Authentication

How to fix

Remediation Available

sambaDebian

Fixed in:2:4.13.13+dfsg-1~deb11u5CVE-2022-2031

Fixed in:2:4.16.4+dfsg-1CVE-2022-2031

sambaUbuntu

Fixed in:2:4.13.17~dfsg-0ubuntu1.20.04.1USN-5542-1

Fixed in:2:4.15.9+dfsg-0ubuntu0.2USN-5542-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.97%probability of exploitation in 30 days

57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Vendor Advisory1

samba.org

Other references1

security.gentoo.org

Related Vulnerabilities

Other CWE-288 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2024-1709	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2024-27198	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2025-4427	Medium	5.3	100%	KEV	Fix
CVE-2024-55591	Critical	9.8	98%	KEV + Ransom	Fix
CVE-2023-46747	Critical	9.8	97%	KEV + Ransom	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.