HIGHVulnerability
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 - 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.
Properties
- severity
- HIGH
- score
- 8.2
- cve_id
- CVE-2026-54412
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- published_at
- 2026-06-14T18:17:20.750
- last_modified
- 2026-08-10T12:17:17.240
Related Entities (3)
HAS_WEAKNESS (2)
→[Weakness]Integer Underflow (Wrap or Wraparound)
→[Weakness]Out-of-bounds Read
DESCRIBED_BY (1)
→[Source]NVD
Explore deeper with Ninja Signal's threat intelligence graph