Is CVE-2024-31403 in the CISA KEV catalog?

No. CVE-2024-31403 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-31403?

CVE-2024-31403 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2024-31403?

CVE-2024-31403 has an EPSS score of 0.29% (21th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-31403?

Upgrade garoon to 6.0.1 or later.

CVE & CISA-KEV Catalog

CVE-2024-31403

MEDIUM

5.4

CVSS v3

NVD

Description

Incorrect authorization vulnerability in Cybozu Garoon 5.0.0 to 6.0.0 allows a remote authenticated attacker to alter and/or obtain the data of Memo.

CWE-863Incorrect Authorization

How to fix

Remediation Available

garoonNVD

Affected:>= 5.5.0, < 6.0.1Fixed in:6.0.1CVE-2024-31403derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Exploit Intelligence

0.29%probability of exploitation in 30 days

21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

Vendor Advisory1

cs.cybozu.co.jp

Third-Party Advisory1

jvn.jp

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-28.