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CVE Vulnerability Details :
CVE-2026-49035
PUBLISHED
More InfoOfficial Page
Assigner-icscert
Assigner Org ID-7d14cffa-0d7d-4270-9dc0-52cabd5a23a6
View Known Exploited Vulnerability (KEV) details
Published At-23 Jul, 2026 | 20:48
Updated At-24 Jul, 2026 | 13:42
Rejected At-
▼CVE Numbering Authority (CNA)
Stack-based Buffer Overflow in MZ Automation libIEC61850

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution (RCE) has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled.

Affected Products
Vendor
MZ Automation
Product
libIEC61850
Default Status
unaffected
Versions
Affected
  • From 1.0.0 through 1.6.1 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-122CWE-122 Heap-based buffer overflow
Type: CWE
CWE ID: CWE-122
Description: CWE-122 Heap-based buffer overflow
Metrics
VersionBase scoreBase severityVector
3.18.1HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
4.09.2CRITICAL
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Version: 3.1
Base score: 8.1
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 4.0
Base score: 9.2
Base severity: CRITICAL
Vector:
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

MZ Automation recommends updating to the latest build of the libIEC61850 standard. Documentation can be found at https://github.com/mz-automation/libiec61850. https://github.com/mz-automation/libiec61850

Configurations
Workarounds
Exploits
Credits
finder
Abhinav Agarwal reported this vulnerability to CISA
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.cisa.gov/news-events/ics-advisories/icsa-26-204-06
government-resource
Hyperlink: https://www.cisa.gov/news-events/ics-advisories/icsa-26-204-06
Resource:
government-resource
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found