Out-of-bounds Read in Liambindle Mqtt-c
CVE-2026-54412
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 -…
Vulnerability class: Buffer Overflow
EPSS: 0.004 (33.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.
Affected products
- Liambindle Mqtt-c — versions 0
Weakness classification (CWE)
References
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (technical-description)
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (technical-description)
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (product)
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (product)
Frequently asked questions
- What is CVE-2026-54412?
- CVE-2026-54412 is a high-severity vulnerability in Liambindle Mqtt-c, classified under Out-of-bounds Read. CVSS score: 8.2/10. Published 2026-06-14.
- How severe is CVE-2026-54412?
- High severity. CVSS v3 base score is 8.2 out of 10.