CVE-2024-5271

Arbitrary code execution via malformed V9C file

Published May 30, 2024 · Updated Jul 24, 2025

Type confusion in Fuji Electric MONITOUCH V-SFT before 6.2.3.0 allows remote attackers to execute arbitrary code via a crafted V9C file. The V9C parser fails to validate user-supplied data before writing past the end of an allocated data structure. Exploitation requires the target to open a malicious file or visit a malicious page, after which code runs in the context of the current process.

CVSS severity8.5
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in Fuji Electric MONITOUCH V-SFT before 6.2.3.0 allows remote attackers to execute arbitrary code via a crafted V9C file. The V9C parser fails to validate user-supplied data before writing past the end of an allocated data structure. Exploitation requires the target to open a malicious file or visit a malicious page, after which code runs in the context of the current process.

The record

CVE
CVE-2024-5271
Published
May 30, 2024
Updated
Jul 24, 2025
Vendor
Fuji Electric
Product
MONITOUCH V-SFT
Classifications
CWE-843, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=6.2.3.0
  2. Affected versionversion=0 <6.2.3.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Fuji Electric · MONITOUCH V-SFTversion=0 <=6.2.3.0; version=0 <6.2.3.0

Published CVSS scores

7.8ICS-CERTCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.5ICS-CERTCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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