VDB-309530 · CVE-2025-47749 · GCVE-0-2025-47749

Fuji Electric V-SFT up to 6.2.5.0 VS6EditData.dll WinFontMsgCheck free of pointer not at start of buffer

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Fuji Electric V-SFT up to 6.2.5.0 and classified as very critical. Affected by this issue is the function CWinFontInf::WinFontMsgCheck in the library VS6EditData.dll. Such manipulation leads to free of pointer not at start of buffer. This vulnerability is referenced as CVE-2025-47749. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Fuji Electric V-SFT up to 6.2.5.0. Affected by this issue is the function CWinFontInf::WinFontMsgCheck in the library VS6EditData.dll. The manipulation with an unknown input leads to a free of pointer not at start of buffer vulnerability. Using CWE to declare the problem leads to CWE-761. The product calls free() on a pointer to a memory resource that was allocated on the heap, but the pointer is not at the start of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

V-SFT v6.2.5.0 and earlier contains an issue with free of pointer not at start of buffer in VS6EditData.dll!CWinFontInf::WinFontMsgCheck function. Opening specially crafted V7 or V8 files may lead to crash, information disclosure, and arbitrary code execution.

The advisory is available at monitouch.fujielectric.com. This vulnerability is handled as CVE-2025-47749 since 05/09/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/19/2025).

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Fuji Electric

Name

V-SFT

Version

License

commercial

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: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (jpcert): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Free of pointer not at start of buffer
CWE: CWE-761 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/09/2025 🔍
05/19/2025 +10 days 🔍
05/19/2025 +0 days 🔍
05/19/2025 +0 days 🔍

Sourcesinfo

Advisory: monitouch.fujielectric.com
Status: Confirmed

CVE: CVE-2025-47749 (🔍)
GCVE (CVE): GCVE-0-2025-47749
GCVE (VulDB): GCVE-100-309530

Entryinfo

Created: 05/19/2025 11:06
Changes: 05/19/2025 11:06 (75)
Complete: 🔍
Cache ID: 216::103