CVE-2026-50039: Stack-based Buffer Overflow in MZ Automation libIEC61850
Published Jul 23, 2026
·Updated
The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to cause a memory corruption via a Read Request.
Affected Software
1 affected component
libIEC61850
Event History
Jul 23, 2026
CVE Published
via MITRE·08:32 PM
Data Sourced
via MITRE·08:32 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·09:17 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-50039?
CVE-2026-50039 has a severity rating of 7.5, classified as high.
2
How do I fix CVE-2026-50039?
To mitigate CVE-2026-50039, update to the latest version of libIEC61850 that addresses this buffer overflow vulnerability.
3
What are the potential impacts of CVE-2026-50039?
CVE-2026-50039 may allow attackers to cause memory corruption, leading to potential system instability or crashes.
4
Is CVE-2026-50039 exploitable remotely?
Yes, CVE-2026-50039 can be exploited remotely, as it allows attackers to send specially crafted Read Requests.
5
What causes CVE-2026-50039?
CVE-2026-50039 is caused by a stack-based buffer overflow in the MZ Automation libIEC61850.