Buffer Overflow Affecting emqx/nanomq package, versions [,0.24.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published16 Dec 2025
- disclosed15 Dec 2025
- creditRoman Kraus
Introduced: 15 Dec 2025
CVE-2025-59947 (opens in a new tab)How to fix?
Upgrade emqx/nanomq to version 0.24.3 or higher.
Overview
Affected versions of this package are vulnerable to Buffer Overflow via the process that handles PUBLISH packets triggering both shared and vanilla subscriptions. An attacker can execute arbitrary code or cause a crash by sending specially crafted packets.
##Workaround
This issue can be mitigated by disabling shared subscription.