What is CVE-2019-5976?

CVE-2019-5976 is a medium-severity vulnerability in Cybozu Garoon, classified under Improper Input Validation. CVSS score: 4.9/10. Published 2019-09-12.

How severe is CVE-2019-5976?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Improper input validation in Cybozu Garoon

CVE-2019-5976

Cybozu Garoon 4.0.0 to 4.10.2 allows an attacker with administrative rights to cause a denial of service condition via unspecified vectors.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-09-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (65.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Cybozu Garoon
Inc." Cybozu Garoon — versions 4.0.0 to 4.10.2

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

jvn.jp/en/jp/JVN62618482/index.html (Third Party Advisory)
kb.cybozu.support/article/35913 (Vendor Advisory)

Frequently asked questions

What is CVE-2019-5976?: CVE-2019-5976 is a medium-severity vulnerability in Cybozu Garoon, classified under Improper Input Validation. CVSS score: 4.9/10. Published 2019-09-12.
How severe is CVE-2019-5976?: Medium severity. CVSS v3 base score is 4.9 out of 10.