Cybozu Garoon up to 5.9.2 Message denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cybozu Garoon up to 5.9.2. This impacts an unknown function of the component Message Handler. This manipulation causes denial of service. This vulnerability is handled as CVE-2023-26595. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Cybozu Garoon up to 5.9.2 (Groupware Software) and classified as problematic. Affected by this vulnerability is some unknown processing of the component Message Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Denial-of-service (DoS) vulnerability in Message of Cybozu Garoon 4.10.0 to 5.9.2 allows a remote authenticated attacker to cause a denial of service condition.

The weakness was released 05/23/2023. It is possible to read the advisory at cs.cybozu.co.jp. This vulnerability is known as CVE-2023-26595 since 03/15/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-30390). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/15/2023 🔍
05/23/2023 +68 days 🔍
05/23/2023 +0 days 🔍
11/10/2025 +902 days 🔍

Sourcesinfo

Vendor: cybozu-global.com

Advisory: cs.cybozu.co.jp
Status: Confirmed

CVE: CVE-2023-26595 (🔍)
GCVE (CVE): GCVE-0-2023-26595
GCVE (VulDB): GCVE-100-229711
EUVD: 🔍

Entryinfo

Created: 05/23/2023 07:39
Updated: 11/10/2025 02:02
Changes: 05/23/2023 07:39 (39), 06/16/2023 10:00 (11), 01/29/2025 07:44 (24), 11/10/2025 02:02 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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