CVE-2026-51219 Memory corruption in n/a

High 7.5 Published Updated

A heap buffer overflow in lib60870 allows attackers to cause a Denial of Service via a crafted payload.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-51219?

CVE-2026-51219 is a high-severity memory corruption vulnerability in n/a, published on 29 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-122

Which versions are affected by CVE-2026-51219?

How do I fix CVE-2026-51219?

No fix has been published for CVE-2026-51219 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-51219 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51219 exists.

Sources

Also known as GHSA-27wh-38h4-pr2j.

Is CVE-2026-51219 in your software?

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