What is CVE-2024-45970?

CVE-2024-45970 is a critical-severity vulnerability in Mz-Automation Libiec61850, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2024-11-15.

How severe is CVE-2024-45970?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Mz-Automation Libiec61850

CVE-2024-45970

Multiple Buffer overflows in the MMS Client in MZ Automation LibIEC61850 before commit ac925fae8e281ac6defcd630e9dd756264e9c5bc allow a malicious server to cause a stack-based buffer overflow via the MMS FileDirResponse message.

Vulnerability class: Buffer Overflow

Published 2024-11-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Mz-Automation Libiec61850

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

github.com/mz-automation/libiec61850/commit/ac925fae8e281ac6defcd630e9dd756264e… (Patch)
encs.eu/news/critical-security-vulnerabilities-discovered-in-mz-automations-mms… (Third Party Advisory)

Frequently asked questions

What is CVE-2024-45970?: CVE-2024-45970 is a critical-severity vulnerability in Mz-Automation Libiec61850, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2024-11-15.
How severe is CVE-2024-45970?: Critical severity. CVSS v3 base score is 9.8 out of 10.