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CVE-2026-73863Proof of concept (PoC) published · CISA

NanoMQ: Heap-Buffer-Overflow in `nmq_subinfo_decode()` During MQTT v5 SUBSCRIBE Parsing

CVSS score

7.0

EPSS probability

%0.4

Risk score

0.0

Published

1 mo ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline

Vulnerability Timeline (Change History)

CVE-2026-73863 historical changes made to the vulnerability by NVD, CISA and MITRE:

DateActor / SourceAction / DescriptionTypePrevious valueNew value
24.09.2026nvd@nist.govInitial Analysis & CVSS Vector AssignmentCVSS V3.1—CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:H
18.09.2026CISA CoordinatorSSVC Risk Re-assessmentSSVC / KEVexploitation: noneexploitation: none
18.09.2026MITRE / NVDNew CVE Record Received & IngestedCVE Created—CVE-2026-73863

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