CVE-2022-47317

Arbitrary code execution via crafted project file

Published Jan 3, 2023 · Updated Apr 10, 2025

Out-of-bounds write in Fuji Electric V-Server 4.0.12.0 and earlier allows local users to execute arbitrary code via a crafted project file. The project-file parser writes beyond its intended memory boundary while processing malicious file content; the responsible function and field are undisclosed. Exploitation requires a user to open the file, after which attacker-controlled code can run in that user's context and information can be disclosed.

CVSS severity7.8
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Out-of-bounds write in Fuji Electric V-Server 4.0.12.0 and earlier allows local users to execute arbitrary code via a crafted project file. The project-file parser writes beyond its intended memory boundary while processing malicious file content; the responsible function and field are undisclosed. Exploitation requires a user to open the file, after which attacker-controlled code can run in that user's context and information can be disclosed.

The record

CVE
CVE-2022-47317
Published
Jan 3, 2023
Updated
Apr 10, 2025
Vendor
Fuji Electric
Product
V-Server
Classifications
CWE-787, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=v4.0.12.0 and earlier

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Fuji Electric · V-Serverversion=v4.0.12.0 and earlier

Published CVSS scores

7.8JPCERT/CCCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8CISACVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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-787Out-of-bounds Write
T1204.002Malicious File
T1203Exploitation for Client Execution

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo