CVE-2020-7054
CVSS v3
8.8
HIGH
EPSS Score
1.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2020-01-14
Frequently asked questions
What is 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.
Is CVE-2020-7054 actively exploited?
Active exploitation of CVE-2020-7054 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-7054?
CVE-2020-7054 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2020-7054 affecting your environment?
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