Dashboard / CVE-2026-54412

CVE-2026-54412

HIGH
MEDIUM Priority: 0.03 BB Relevance: 76/100
Published: 2026-06-14 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: None
VC: Low
VI: None
VA: High

Description

LiamBindle MQTT-C versions prior to 1.1.7 contain a heap-based out-of-bounds read and integer underflow in the mqtt_unpack_publish_response() function in src/mqtt.c. A remote unauthenticated attacker controlling an MQTT broker, or capable of injecting MQTT traffic into an unencrypted session, can crash a subscribed MQTT-C client and potentially disclose adjacent heap memory by sending a single crafted PUBLISH packet.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
LiamBindle MQTT-C 0 < 1.1.7

References & Advisories (6)

Bug Bounty Relevance

76 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:D/RE:X/U:X

EPSS — Exploitation Probability

0.43%
Raw Score 0.004300
Percentile 37.8%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00430
2026-11-13
0.00430
2026-11-12
0.00430
2026-11-10
0.00430
2026-11-09
0.00430
2026-11-08
0.00430
2026-11-07
0.00430
2026-11-06
0.00430
2026-11-05
0.00407
2026-11-04
0.00407

Intelligence Sources

mitre ref →
nvd ref →

External Links