SecOps SignalSecurity Intelligence Workspace
Collection Degraded30 / 46 Sources HealthyPublic Intel Only
Vulnerabilities/CVE-2025-9784Public Intelligence Dossier
Source: redhat · Limited verification•Last verified: •Collection Degraded
CVE-2025-9784Unknown / EvaluatingHIGH (raw)CVSS 7.5CWE-770

A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters

Published: 02 Sept 2025•Last updated: 14 Oct 2026, 10:47 PM IST•Source identifier: secalert@redhat.com
Dossier completeness: source-provided sections 2 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Unknown
KEV status was not determined.
CVSS score
7.5HIGH (raw)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Metric sourcesecalert@redhat.com
EPSS probability
2.3%0.023
Percentile83rd
Weakness type
CWE-770
CWE-404
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

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).

SOC priority

High

Actively exploited

Unknown

Publicly disclosed

Unknown

Risk basis: SOC ecosystem technology relevance; HIGH severity; No confirmed exploitation signal in current enrichment

Affected Products & Remediation

8 source-backed products
Affected products and versions (source)
  • redhat build of apache camel for spring boot · version range not provided by source · NVD CPE · Source
  • redhat fuse · 7.0.0 · NVD CPE · Source
  • redhat jboss enterprise application platform · 7.0.0; 8.0.0 · NVD CPE · Source
  • redhat jboss enterprise application platform expansion pack · version range not provided by source · NVD CPE · Source
  • redhat process automation · 7.0 · NVD CPE · Source
  • redhat single sign-on · 7.0 · NVD CPE · Source
  • redhat undertow · version range not provided by source · NVD CPE · Source
  • redhat enterprise linux · 8.0; 9.0 · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

Not provided by source

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Unknown
Exploited (source statement)
Unknown
Publicly disclosed (source)
Unknown

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched network-unauthenticated (CVSS AV:N, CVSS PR:N, CVSS UI:N)

Exposure

  1. Identify devices reporting this CVE and note which expose the affected service to untrusted networks.Telemetry: DeviceTvmSoftwareVulnerabilities · A network-reachable, no-privilege vector makes internet-facing instances the first exposure question. · Rule network-unauthenticated

Exploitation evidence

  1. Review inbound connections to the affected service from unexpected sources since the advisory date.Telemetry: DeviceNetworkEvents · Hunting hypothesis from the CVSS vector; it does not show that exploitation occurred. · Rule network-unauthenticated

Response

  1. Confirm the source-stated update is installed and the CVE is no longer reported.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies remediation. · Rule network-unauthenticated

CISA KEV Record

CISA KEV status was not determined for this record.

Change History & Source Data

— No recorded material change

CNA / source
secalert@redhat.com
Record status · verification
UPDATED · NVD API
CPE
cpe:2.3:a:redhat:build_of_apache_camel_for_spring_boot:-:*:*:*:*:*:*:*, cpe:2.3:a:redhat:fuse:7.0.0:*:*:*:*:*:*:*, cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0.0:*:*:*:*:*:*:*, cpe:2.3:a:redhat:jboss_enterprise_application_platform:8.0.0:*:*:*:*:*:*:*, cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:*, cpe:2.3:a:redhat:process_automation:7.0:*:*:*:*:*:*:*, cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*, cpe:2.3:a:redhat:undertow:-:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*, cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Evidence & Provenance

3 public sources
access.redhat.comSource recordnvd.nist.govSource recordaccess.redhat.comSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2025-9784
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2025-9784
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2025-9784"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Open KQL Library

Correlated briefings

— No published briefing references this CVE

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.