Cybozu Garoon up to 6.0.3 Portal Setting extra values

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in Cybozu Garoon up to 6.0.3 and classified as problematic. Impacted is an unknown function of the component Portal Setting Handler. Performing a manipulation results in improper handling of extra values. This vulnerability is cataloged as CVE-2026-22888. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Cybozu Garoon up to 6.0.3. It has been classified as problematic. This affects an unknown part of the component Portal Setting Handler. The manipulation with an unknown input leads to a improper handling of extra values vulnerability. CWE is classifying the issue as CWE-231. The product does not handle or incorrectly handles when more values are provided than expected. This is going to have an impact on availability. The summary by CVE is:

Improper input verification issue exists in Cybozu Garoon 5.0.0 to 6.0.3, which may lead to unauthorized alteration of portal settings, potentially blocking access to the product.

The advisory is shared at kb.cybozu.support. This vulnerability is uniquely identified as CVE-2026-22888 since 01/27/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are needed for exploitation. Neither technical details nor an exploit are publicly available.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 2.7
VulDB Temp Score: 2.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 4.9
CNA Vector (jpcert): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper handling of extra values
CWE: CWE-231 / CWE-229 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
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

01/27/2026 CVE reserved
02/02/2026 +6 days Advisory disclosed
02/02/2026 +0 days VulDB entry created
02/19/2026 +17 days VulDB entry last update

Sourcesinfo

Vendor: cybozu-global.com

Advisory: kb.cybozu.support
Status: Confirmed

CVE: CVE-2026-22888 (🔒)
GCVE (CVE): GCVE-0-2026-22888
GCVE (VulDB): GCVE-100-343689

Entryinfo

Created: 02/02/2026 08:20
Updated: 02/19/2026 16:49
Changes: 02/02/2026 08:20 (74), 02/19/2026 16:49 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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