CVE-2025-9784
moderate-risk
Published 2025-09-02
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).
Do I need to act?
~
1.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (10)
Build Of Apache Camel For Spring Boot
Jboss Enterprise Application Platform Expansion Pack
Affected Vendors
References (18)
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2025-9784
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2392306
46
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
4/34 · Minimal
Exposure
16/34 · Moderate