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CVE-2021-34434

5.3 mediumEPSS 1.3%

Medium (5.3). EPSS 1.3% chance of exploitation in the next 30 days.

In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a client to make subscriptions on a topic is revoked when a durable client is offline, then existing subscriptions for that client are not revoked.

Severity

CVSS 3.1

5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
1.3% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
CWEs
CWE-863, CWE-285
Published
Modified
Record from
the NVD, synced

Affected

References

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