CVE-2023-25909Network attack vector

Unauthenticated code execution via unrestricted file upload

Published Mar 27, 2023 · Updated Feb 19, 2025

Unrestricted file upload in HGiga OAKlouds versions 2 and 3 allows unauthenticated remote attackers to execute code through crafted files. The upload function accepts dangerous executable file types without enforcing a type restriction, then permits the uploaded content to run. No authentication is required; successful exploitation can execute arbitrary commands or interrupt the portal service.

CVSS severity9.8
Critical
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in HGiga OAKlouds versions 2 and 3 allows unauthenticated remote attackers to execute code through crafted files. The upload function accepts dangerous executable file types without enforcing a type restriction, then permits the uploaded content to run. No authentication is required; successful exploitation can execute arbitrary commands or interrupt the portal service.

The record

CVE
CVE-2023-25909
Published
Mar 27, 2023
Updated
Feb 19, 2025
Vendor
HGiga
Product
OAKlouds
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 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=2
  2. Affected versionversion=3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HGiga · OAKloudsversion=2; version=3

Published CVSS scores

9.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

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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