CVE-2025-8861: Changing｜TSA - Missing Authentication

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-29 · updated 2026-10-18
Weakness: CWE-306

Description

TSA developed by Changing has a Missing Authentication vulnerability, allowing unauthenticated remote attackers to read, modify, and delete database contents.

Affected products

Changing TSA: before 2025/2/6 — fixed in 2025/2/6

How to fix

Upgrade to a fixed version: Changing TSA 2025/2/6. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/en/cp-139-10361-4ce04-2.html
https://www.twcert.org.tw/tw/cp-132-10360-012e7-1.html

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