What is CVE-2020-36428?

CVE-2020-36428 is a high-severity vulnerability in Matio Project, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-07-20.

How severe is CVE-2020-36428?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Matio Project

CVE-2020-36428

matio (aka MAT File I/O Library) 1.5.18 through 1.5.21 has a heap-based buffer overflow in ReadInt32DataDouble (called from ReadInt32Data and Mat_VarRead4).

Vulnerability class: Buffer Overflow

Published 2021-07-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Matio Project

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

bugs.chromium.org/p/oss-fuzz/issues/detail (Third Party Advisory)
github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2020-799.yaml (Third Party Advisory)

Frequently asked questions

What is CVE-2020-36428?: CVE-2020-36428 is a high-severity vulnerability in Matio Project, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-07-20.
How severe is CVE-2020-36428?: High severity. CVSS v3 base score is 8.8 out of 10.