CVE•Published 2026-06-14•Modified 2026-08-10•1 article on news•5 live references•NVD data
CVE-2026-54412
Vulnerability data via NVD (ingested)
CVSS v3.1
8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
EPSS percentile
34
Exploit Prediction Scoring System · top 66% of all CVEs
Description
LiamBindle MQTT-C through version 1.1.6 contains a heap-based out-of-bounds read and integer underflow in the mqtt_unpack_publish_response function in src/mqtt.c that allows a remote unauthenticated attacker controlling an MQTT broker - or able to inject MQTT traffic into an unencrypted session - to crash a subscribed MQTT-C client and potentially disclose adjacent heap memory by sending a single crafted PUBLISH packet.
Timeline
Published 2026-06-14
Modified 2026-08-10
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-54412Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-54412Censys host search filtered to this CVE id.
grep.app
CVE-2026-54412Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-54412GitHub code search for direct mentions.
Google dork
"CVE-2026-54412" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.