Buffer overflow in Mz-automation Libiec61850

CVE-2018-19185

An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c. This is exploitable even after CVE-2018-18834 has been patched, with a different dataSetValue sequen…

Vulnerability class: Buffer Overflow

EPSS: 0.021 (79.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-19185?
CVE-2018-19185 is a critical-severity vulnerability in Mz-automation Libiec61850, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-11-12.
How severe is CVE-2018-19185?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-19185 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.