CVE-2025-5115Network attack vector

Service interruption via unbounded reset streams

Published Aug 20, 2025 · Updated Nov 4, 2025

Resource exhaustion in affected Eclipse Jetty HTTP/2 servers allows remote attackers to interrupt service via malformed control frames. HTTP2Session resets streams after illegal WINDOW_UPDATE or state-invalid frames without counting them toward the concurrent-stream limit while backend work continues. Unauthenticated network access to an HTTP/2 connector is sufficient to create unbounded streams on one connection and exhaust CPU or memory.

CVSS severity7.5
High
EPSS probability3.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in affected Eclipse Jetty HTTP/2 servers allows remote attackers to interrupt service via malformed control frames. HTTP2Session resets streams after illegal WINDOW_UPDATE or state-invalid frames without counting them toward the concurrent-stream limit while backend work continues. Unauthenticated network access to an HTTP/2 connector is sufficient to create unbounded streams on one connection and exhaust CPU or memory.

The record

CVE
CVE-2025-5115
Published
Aug 20, 2025
Updated
Nov 4, 2025
Vendor
The Eclipse Foundation
Product
Eclipse Jetty
Classifications
CWE-400, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>=10.0.0 <=<=10.0.25
  2. Affected versionversion=>=11.0.0 <=<=11.0.25
  3. Affected versionversion=>=12.0.0 <=<=12.0.21
  4. Affected versionversion=>=12.1.0.alpha0 <=<=12.1.0.alpha2
  5. Affected versionversion=>=9.3.0 <=<=9.4.57

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Eclipse Foundation · Eclipse Jettyversion=>=10.0.0 <=<=10.0.25; version=>=11.0.0 <=<=11.0.25; version=>=12.0.0 <=<=12.0.21; version=>=12.1.0.alpha0 <=<=12.1.0.alpha2; version=>=9.3.0 <=<=9.4.57

Published CVSS scores

7.5GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.003Application Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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