CVE-2023-25909: HGiga Inc. OAKlouds - Arbitrary File Upload

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-03-27 · updated 2026-06-17
Weakness: CWE-434

Description

HGiga OAKlouds file uploading function does not restrict upload of file with dangerous type. An unauthenticated remote attacker can exploit this vulnerability to upload and run arbitrary executable files to perform arbitrary command or disrupt service.

Affected products

Hgiga OAKlouds: from 2.0 before 2.0-10; from 3.0 before 3.0-10 — fixed in 2.0-10, 3.0-10

How to fix

Upgrade to a fixed version: Hgiga OAKlouds 2.0-10, 3.0-10. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/tw/cp-132-6973-45872-1.html
https://www.twcert.org.tw/tw/cp-132-6973-45872-1.html

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