CVE-2024-8626Network attack vector

Unauthenticated service interruption via web-page memory leak

Published Oct 8, 2024 · Updated Oct 8, 2024

Memory exhaustion in Rockwell Automation Logix controller firmware allows remote attackers to interrupt controller service. Repeated actions on unspecified embedded web pages leak memory until the device becomes fully unavailable. The web interface must be reachable, but no authentication or user interaction is required; recovery requires a power cycle.

CVSS severity8.7
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory exhaustion in Rockwell Automation Logix controller firmware allows remote attackers to interrupt controller service. Repeated actions on unspecified embedded web pages leak memory until the device becomes fully unavailable. The web interface must be reachable, but no authentication or user interaction is required; recovery requires a power cycle.

The record

CVE
CVE-2024-8626
Published
Oct 8, 2024
Updated
Oct 8, 2024
Vendor
Rockwell Automation
Product
Compact GuardLogix 5380 Firmware
Classifications
CWE-400, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=33.011 <33.015

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rockwell Automation · Compact GuardLogix 5380 Firmwareversion=33.011 <33.015
Rockwell Automation · CompactLogix 5480 Firmwareversion=33.011 <33.015
Rockwell Automation · CompactLogix 5480 Controllersversion=v33.011<
Rockwell Automation · 1756-EN4TRversion=v3.002
Rockwell Automation · 1756-EN4TR Firmwareversion=3.002
Rockwell Automation · GuardLogix 5580version=v33.011<
Rockwell Automation · CompactLogix 5380 Firmwareversion=33.011 <33.015
Rockwell Automation · GuardLogix 5580 Firmwareversion=33.001 <33.015
Rockwell Automation · Compact GuardLogix 5380version=v33.011<
Rockwell Automation · CompactLogix 5380 Controllersversion=v33.011 <

Published CVSS scores

8.7Rockwell AutomationCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5Rockwell AutomationCVSS: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 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-400Uncontrolled Resource Consumption
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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