CVE-2024-36702
HighCVSS 7.4Exploitation Probability (EPSS)
Low risk16th percentile - higher than 16% of all known CVEs
Summary
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.
Risk Assessment
The risk to the organization includes potential remote code execution and system compromise, leading to data integrity and availability issues.
Recommendation
It is recommended to immediately update libiec61850 to the latest patched version. Additionally, review system configurations for usage of vulnerable versions.
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-2026-19108Medium
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.
- 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.
Original NVD description (English source)
libiec61850 v1.5 was discovered to contain a heap overflow via the BerEncoder_encodeLength function at /asn1/ber_encoder.c.