Cyber Resilience

CVE-2024-31397

Cybozu Garoon 5.0.0 – 5.15.2

Published
11 June 2024
Modified
13 February 2026
CVSS Score v3.1 4.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0045 37th percentile
Risk Priority 39 floored blend · peak EPSS

Summary

CVE-2024-31397 is a medium-severity Improper Handling of Extra Values (CWE-231) vulnerability in Cybozu Garoon. Its CVSS base score is 4.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 37th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Improper handling of extra values issue exists in Cybozu Garoon 5.0.0 to 5.15.2. If this vulnerability is exploited, a user who can log in to the product with the administrative privilege may be able to cause a denial-of-service (DoS) condition.

CWE(s)
CWE-231

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-22888Same product: Cybozu Garoon
CVE-2023-27304Same product: Cybozu Garoon
CVE-2024-31403Same product: Cybozu Garoon
CVE-2024-31402Same product: Cybozu Garoon
CVE-2023-27384Same product: Cybozu Garoon
CVE-2026-22881Same product: Cybozu Garoon
CVE-2024-39457Same product: Cybozu Garoon
CVE-2024-31401Same product: Cybozu Garoon
CVE-2026-20711Same product: Cybozu Garoon
CVE-2024-31398Same product: Cybozu Garoon

Affected Assets

cybozu
garoon
5.0.0 — 5.15.2

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

Input validation directly enforces correct handling of the number and format of supplied values, stopping extra values from being accepted or processed.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require robust input validation that prevents improper handling of extra values.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect extra-value handling issues but does not prevent them by itself.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle includes input validation and parameter handling that can prevent extra-value processing flaws.

A.8.26 Application security requirements partial match
prevents

Application security requirements typically mandate strict input validation and parameter count checks.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles encourage robust input handling but do not specifically address extra-value scenarios.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require validation of the exact number and type of input parameters.

References