Is CVE-2025-31947 in the CISA KEV catalog?

No. CVE-2025-31947 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-31947?

CVE-2025-31947 has a CVSS v3 base score of 5.8 (MEDIUM).

What is the EPSS score for CVE-2025-31947?

CVE-2025-31947 has an EPSS score of 0.29% (21th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-31947?

Upgrade mattermost server to 10.6.2 or later.

CVE & CISA-KEV Catalog

CVE-2025-31947

MEDIUM

5.8

CVSS v3

NVD

Description

Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to lockout LDAP users following repeated login failures, which allows attackers to lock external LDAP accounts through repeated login failures through Mattermost.

CWE-645

How to fix

Remediation Available

mattermost serverNVD

Affected:>= 10.6.0, < 10.6.2Fixed in:10.6.2CVE-2025-31947derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.29%probability of exploitation in 30 days

21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

Vendor Advisory1

mattermost.com

Related Vulnerabilities

Other CWE-645 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4346	High	7.5	0.9%	KEV	-
CVE-2024-1722	Low	3.7	0.8%	-	-
CVE-2024-37028	Medium	5.3	0.4%	-	Fix
CVE-2025-5241	Medium	5.3	0.4%	-	-
CVE-2026-53982	Medium	6.5	0.3%	-	-
CVE-2026-25907	Medium	5.3	0.3%	-	-

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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 2025-10-06.