What is CVE-2019-20063?

CVE-2019-20063 is a high-severity vulnerability in Symonics Libmysofa, classified under Improper Initialization. CVSS score: 8.8/10. Published 2019-12-29.

How severe is CVE-2019-20063?

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

Vulnerability in Symonics Libmysofa

CVE-2019-20063

hdf/dataobject.c in libmysofa before 0.8 has an uninitialized use of memory, as demonstrated by mysofa2json.

Vulnerability class: Dirty Pipe (CVE-2022-0847)

Published 2019-12-29 · 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: 0.015 (72.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.4% 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: 0.015 · change: +0.000

Affected products

Symonics Libmysofa

Weakness classification (CWE)

CWE-665 — Improper Initialization

References

github.com/hoene/libmysofa/issues/67 (Exploit, Third Party Advisory, Issue Tracking)
github.com/hoene/libmysofa/compare/v0.7...v0.8 (Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2019-20063?: CVE-2019-20063 is a high-severity vulnerability in Symonics Libmysofa, classified under Improper Initialization. CVSS score: 8.8/10. Published 2019-12-29.
How severe is CVE-2019-20063?: High severity. CVSS v3 base score is 8.8 out of 10.