CVE-2026-51219

MEDIUM

lib60870 2.3.3-2.3.6 - Denial of Service via HighPriorityASDUQueue_hasUnconfirmedIMessages Heap Overflow

Title source: llm

Description

A heap buffer overflow in the HighPriorityASDUQueue_hasUnconfirmedIMessages function of lib60870 v2.3.3 to v2.3.6 allows attackers to cause a Denial of Service (DoS) via a crafted payload.

References (3)

Core 3

Core References

https://github.com/mz-automation/lib60870

View Writeup ZIP pw:eip

https://github.com/mz-automation/lib60870/releases

https://github.com/mz-automation/lib60870/issues/196

Scores

CVSS v3 6.5

EPSS 0.0035

EPSS Percentile 27.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-122

Status published

Published Jun 29, 2026

Tracked Since Jun 30, 2026