Is CVE-2025-62723 in the CISA KEV catalog?

No. CVE-2025-62723 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-62723?

CVE-2025-62723 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2025-62723?

CVE-2025-62723 has an EPSS score of 0.31% (23th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-62723?

Upgrade flashmq to 1.23.2 or later.

CVE & CISA-KEV Catalog

CVE-2025-62723

MEDIUM

4.3

CVSS v3

NVD

Description

FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.23.2, any authenticated user can create sessions and have them collect QoS messages. When not sent to a client, these are then not released upon (eventual) session expiration. Version 1.23.2 fixes the issue.

CWE-772

How to fix

Remediation Available

flashmqNVD

Affected:< 1.23.2Fixed in:1.23.2CVE-2025-62723derived from NVD

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

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.31%probability of exploitation in 30 days

23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Patch2

Issue Tracking1

github.com

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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 2025-10-31.