Buffer overflow in N/a

CVE-2026-51219

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.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-51219: held from 0.005 to 0.007.

EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.002

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-51219?
CVE-2026-51219 is a high-severity vulnerability in N/a, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-06-29.
How severe is CVE-2026-51219?
High severity. CVSS v3 base score is 7.5 out of 10.