CVE-2026-19206

A security flaw has been discovered in MZ Automation libiec61850 up to 1.6.1. This affects the function SVReceiver_stopThreadless of the file src/sampled_values/sv_subscriber.c of the component ASDU Element Handler. Performing a manipulation results in heap-based buffer overflow. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.6.2 is able to mitigate this issue. The patch is named a96bd674e0238276dd1387d31d52e55229d0771e. The affected component should be upgraded.

CVSS v3 5.3 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 3.1 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/mz-automation/libiec61850/commit/a96bd674e0238276dd1387d31d52e55229d0771e
https://github.com/mz-automation/libiec61850/issues/598
https://github.com/mz-automation/libiec61850/issues/598#issuecomment-4858659113
https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2
https://vuldb.com/cve/CVE-2026-19206
https://vuldb.com/submit/864840
https://vuldb.com/vuln/386950
https://vuldb.com/vuln/386950/cti

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-07 14:16

Updated : 2026-08-12 21:00

NVD link : CVE-2026-19206

Mitre link : CVE-2026-19206

CVE.ORG link : CVE-2026-19206

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-122

Heap-based Buffer Overflow

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