How severe is CVE-2024-31403?

CVE-2024-31403 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-31403 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-31403?

CVE-2024-31403 affects Cybozu Garoon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-31403?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-31403 have an EU (EUVD) identifier?

Yes. CVE-2024-31403 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-29298.

When was CVE-2024-31403 published?

CVE-2024-31403 was published on 2024-06-11 and last updated on 2026-06-17.

CVE-2024-31403

CVE-2024-31403 is a medium-severity vulnerability in Cybozu Garoon with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-29298
Weakness: CWE-863
Affected product: Cybozu Garoon
Published: 2024-06-11
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2024-31403?: 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.
How severe is CVE-2024-31403?: CVE-2024-31403 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-31403 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-31403?: CVE-2024-31403 affects Cybozu Garoon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-31403?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-31403 have an EU (EUVD) identifier?: Yes. CVE-2024-31403 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-29298.
When was CVE-2024-31403 published?: CVE-2024-31403 was published on 2024-06-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cybozu:garoon:*:*:*:*:*:*:*:*

More vulnerabilities in Cybozu Garoon

CVE-2014-1987 — Critical (CVSS 10.0): The CGI component in Cybozu Garoon 3.1.0 through 3.7 SP3 allows remote attackers to execute arbitrary commands via…
CVE-2019-5945 — Critical (CVSS 9.8): Cybozu Garoon 4.2.4 to 4.10.1 allow remote attackers to obtain the users' credential information via the authentication…
CVE-2016-1219 — Critical (CVSS 9.8): Cybozu Garoon before 4.2.2 allows remote attackers to bypass login authentication via vectors related to API use.
CVE-2024-31401 — Critical (CVSS 9.0): Cross-site scripting vulnerability in Cybozu Garoon 5.0.0 to 5.15.2 allows a remote authenticated attacker with an…
CVE-2018-0607 — High (CVSS 8.8): SQL injection vulnerability in the Notifications application in the Cybozu Garoon 3.5.0 to 4.6.2 allows remote…
CVE-2018-0530 — High (CVSS 8.8): SQL injection vulnerability in the Cybozu Garoon 3.5.0 to 4.2.6 allows remote authenticated attackers to execute…

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Other CWE-863 (Incorrect Authorization) vulnerabilities

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CVE-2026-44330 — Critical (CVSS 10.0): free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the…
CVE-2026-46595 — Critical (CVSS 10.0): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of…
CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
CVE-2026-32213 — Critical (CVSS 10.0): Improper authorization in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →