CVE-2026-19108
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
Use-after-free vulnerability in MZ Automation libiec61850 up to 1.6.1, in the function deleteDataSetValuesShadowBuffer of the file src/iec61850/server/mms_mapping/reporting.c (URCB Revalidation component). The attack requires local access. The exploit has been made public. Upgrading to version 1.6.2 fixes the issue.
Risk Assessment
A local attacker could exploit the flaw to corrupt memory, potentially leading to system crashes or arbitrary code execution.
Recommendation
Immediately upgrade libiec61850 to version 1.6.2 or later and restrict local access to the system.
Other vulnerabilities in libiec61850
See all- CVE-2026-52134Critical
libiec61850 version 1.6 contains a vulnerability in the parseGoosePayload() function in /goose/goose_receiver.c, allowing attackers to bypass authentication via a captured GOOSE frame.
- CVE-2026-19259Medium
In the MZ Automation libiec61850 library up to version 1.6.1, a heap-based buffer overflow vulnerability was found in the MmsMapping_varAccessSpecToObjectReference function in src/iec61850/common/iec61850_common.c of the MMS Protocol Workflow component. Manipulating the GetNamedVariableListAttributesResponse.itemId argument leads to overflow. The attack requires local access, and the exploit is public.
- CVE-2026-19206Medium
A heap-based buffer overflow vulnerability was found in MZ Automation libiec61850 up to 1.6.1 in the function SVReceiver_stopThreadless of src/sampled_values/sv_subscriber.c. The attack must be initiated locally and the exploit is public. Version 1.6.2 mitigates the issue.
- CVE-2026-18583Medium
A weakness has been identified in mz-automation libiec61850 up to 1.6.1. The function checkDataSetAccess in src/iec61850/server/mms_mapping/mms_mapping.c causes an out-of-bounds read. The attack can be initiated remotely. The exploit has been made public.
- CVE-2024-36702High
A heap overflow vulnerability was discovered in libiec61850 version 1.5 in the BerEncoder_encodeLength function at /asn1/ber_encoder.c. This flaw could allow an attacker to execute arbitrary code or cause a denial of service.
Original NVD description (English source)
A vulnerability was found in MZ Automation libiec61850 up to 1.6.1. The affected element is the function deleteDataSetValuesShadowBuffer of the file src/iec61850/server/mms_mapping/reporting.c of the component URCB Revalidation. The manipulation results in use after free. The attack needs to be approached locally. The exploit has been made public and could be used. Upgrading to version 1.6.2 is sufficient to fix this issue. The patch is identified as 486fd57f3aed65bb9d636ff00f9ddce2e450b168. Upgrading the affected component is advised.