Live2D Cubism Editor 4.2.03 MOC3 File out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Live2D Cubism Editor 4.2.03. This impacts an unknown function of the component MOC3 File Handler. Such manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2023-27566. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Live2D Cubism Editor 4.2.03. It has been rated as critical. Affected by this issue is some unknown functionality of the component MOC3 File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Cubism Core in Live2D Cubism Editor 4.2.03 allows out-of-bounds write via a crafted Section Offset Table or Count Info Table in an MOC3 file.

The weakness was presented 03/04/2023. The advisory is shared for download at docs.live2d.com. This vulnerability is handled as CVE-2023-27566 since 03/03/2023. There are neither technical details nor an exploit publicly available.

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-2023-31315). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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

03/03/2023 🔍
03/04/2023 +1 days 🔍
03/04/2023 +0 days 🔍
11/17/2025 +989 days 🔍

Sourcesinfo

Advisory: docs.live2d.com
Status: Confirmed

CVE: CVE-2023-27566 (🔍)
GCVE (CVE): GCVE-0-2023-27566
GCVE (VulDB): GCVE-100-222308
EUVD: 🔍

Entryinfo

Created: 03/04/2023 09:55
Updated: 11/17/2025 11:26
Changes: 03/04/2023 09:55 (38), 03/31/2023 10:30 (11), 11/17/2025 11:26 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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