How severe is CVE-2019-6135?

CVE-2019-6135 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-6135 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6135?

CVE-2019-6135 affects Mz-automation Libiec61850. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-6135?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-6135 published?

CVE-2019-6135 was published on 2019-01-11 and last updated on 2026-06-17.

CVE-2019-6135

CVE-2019-6135 is a high-severity vulnerability in Mz-automation Libiec61850 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Mz-automation Libiec61850
Published: 2019-01-11
Last modified: 2026-06-17

Description

An issue has been found in libIEC61850 v1.3.1. Memory_malloc in hal/memory/lib_memory.c has a memory leak when called from Asn1PrimitiveValue_create in mms/asn1/asn1_ber_primitive_value.c, as demonstrated by goose_publisher_example.c and iec61850_9_2_LE_example.c.

Frequently asked questions

What is CVE-2019-6135?: An issue has been found in libIEC61850 v1.3.1. Memory_malloc in hal/memory/lib_memory.c has a memory leak when called from Asn1PrimitiveValue_create in mms/asn1/asn1_ber_primitive_value.c, as demonstrated by goose_publisher_example.c and iec61850_9_2_LE_example.c.
How severe is CVE-2019-6135?: CVE-2019-6135 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-6135 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6135?: CVE-2019-6135 affects Mz-automation Libiec61850. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-6135?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-6135 published?: CVE-2019-6135 was published on 2019-01-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mz-automation:libiec61850:1.3.1:*:*:*:*:*:*:*

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