Vulnerability · Published Aug 29, 2025 · Assigned by twcert

CVE-2025-8861Changing｜TSA - Missing Authentication

Critical 9.8

In plain English

A critical-severity missing authentication in TSA from Changing. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.5%top 55.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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

Affected products (as reported)

Vendor	Product	Versions
Changing	TSA	0 – before 2025/2/6

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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