CVE-2026-54224
Denial of Service in UBB.threads
- State
- Published
- Severity
- 7.1 High
- Published
- Jun 18, 2026
- Updated
- Jun 18, 2026
- Reserved
- Jun 12, 2026
Description
UBB.threads is vulnerable to Denial of Service (DoS). By sending multiple concurrent requests to view any user profile on instances with many registered users, an authenticated attacker can easily exhaust database resources and completely deny access to the application for other users. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | CERT-PL |
Weaknesses
- CWE-405 Asymmetric Resource Consumption (Amplification)
Affected Products
| Product | Versions |
|---|---|
UBB.threadsUBB Systems |
|
References
- https://www.ubbcentral.com/product
- https://cert.pl/en/posts/2026/06/CVE-2026-54219third-party-advisory
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