VulnSocial

CVE-2026-54412Disclosure

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-125CWE-191

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 2 mentions (2026-06-14); latest day: 1
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-06-14: 2Mentions · 2026-06-15: 1Patch / Workaround · 2026-06-15: 1Technical Details · 2026-06-14: 2Technical Details · 2026-06-15: 106-1406-15
Signal classification2 categories
Disclosure
266.7%
Patch
133.3%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-06-142
Disclosure2
2026-06-151
Patch1
Full discourse3 posts
  • ADK Cyber@ADKCyber
    Patch

    CVE-2026-54412 (CVSS 8.2) affects MQTT-C <=1.1.6 with a remote unauthenticated flaw. Organizations using this library in devices should assess exposure and apply updates. via NVD Recent High CVSS #CyberSecurity #InfoSec #Vulnerability https://t.co/C5LyRVMNxO

    Post summary

    CVE‑2026‑54412 is a high‑severity, remote unauthenticated flaw in MQTT‑C versions up to 1.1.6, and organizations should evaluate exposure and apply the available updates.

    0000072
    93 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-54412 Heap-Based Out-of-Bounds Read in LiamBindle MQTT-C Through Version 1.1.6 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-54412

    Post summary

    CVE-2026-54412 is disclosed as a heap-based out-of-bounds read affecting LiamBindle MQTT-C up to version 1.1.6, with no PoC, exploit, or patch details in the provided text.

    0000067
    4.0K followersView on X
  • CVE@CVEnew
    Disclosure

    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 th… https://www.cve.org/CVERecord?id=CVE-2026-54412

    Post summary

    The text announces a heap‑based out‑of‑bounds read and integer underflow issue in MQTT‑C, providing a CVE ID and reference.

    00000143
    57.6K followersView on X

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