VDB
DEBIAN-CVE-2025-9784
DEBIAN-CVE-2025-9784
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | undertow | 1.3.16-1, 1.3.19-1, 1.3.21-1 |
Exploit Intelligence
- drackyjr/CVE-2025-9784 (github-poc)
Timeline
- Sep 2, 2025 CVE Published
- Apr 28, 2026 CVE Updated