CVE-2025-9177Network attack vector

Web-server crash via unthrottled request flood

Published Oct 14, 2025 · Updated Oct 14, 2025

Resource exhaustion in Rockwell Automation 1715-AENTR firmware 3.003 and earlier allows remote attackers to crash its web server. The embedded web server accepts a high volume of requests without sufficient resource limiting or throttling, exhausting service capacity. No authentication or user interaction is required; only the management webpage stops, and a power cycle restores it without affecting I/O control or communications.

CVSS severity7.7
High
EPSS probability0.32%
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 Rockwell Automation 1715-AENTR firmware 3.003 and earlier allows remote attackers to crash its web server. The embedded web server accepts a high volume of requests without sufficient resource limiting or throttling, exhausting service capacity. No authentication or user interaction is required; only the management webpage stops, and a power cycle restores it without affecting I/O control or communications.

The record

CVE
CVE-2025-9177
Published
Oct 14, 2025
Updated
Oct 14, 2025
Vendor
Rockwell Automation
Product
1715-AENTR EtherNet/IP Adapter
Classifications
CWE-770, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 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=Version 3.003 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rockwell Automation · 1715-AENTR EtherNet/IP Adapterversion=Version 3.003 and prior

Published CVSS scores

7.5Rockwell AutomationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.7Rockwell AutomationCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T0814Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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