1. Home
  2. CVE Database
  3. CVE-2020-7054
HIGH · 8.8

CVE-2020-7054

MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.

Vulnerability Description

MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Mz-AutomationLibiec61850<= 1.4.0

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2020-7054?

CVE-2020-7054 is a vulnerability with a CVSS score of 8.8 (HIGH). MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.

How severe is CVE-2020-7054?

CVE-2020-7054 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-7054?

Check the references section above for vendor advisories and patch information. Affected products include: Mz-Automation Libiec61850.