CVE-2026-51219

Heap Buffer Overflow in lib60870 Leading to Denial of Service

Published Jun 29, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Heap Buffer Overflow in lib60870 Leading to Denial of Service
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Title Heap Buffer Overflow in lib60870 Causes DoS
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Mz-automation
Mz-automation lib60870
Vendors & Products Mz-automation
Mz-automation lib60870
Type Values Removed Values Added
Title Heap Buffer Overflow in lib60870 Causes DoS
Weaknesses CWE-122
Type Values Removed Values Added
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
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 4, 2026, 1:45 PM
Reserved
Jun 7, 2026, 12:00 AM
Status
Deferred
Published
Jun 29, 2026, 11:16 PM
Modified
Aug 4, 2026, 2:16 PM