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CVE-2024-8626: Due to a memory leak, a denial-of-service vulnerability exists in the Rockwell Automation affected products

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HIGH 7.5REMOTEUPGRADEUPGRADEUPGRADE

CVE-2024-8626 is a high-severity flaw (CVSS 7.5) affecting compactlogix 5380 firmware, compact guardlogix 5380 firmware, compactlogix 5480 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Due to a memory leak, a denial-of-service vulnerability exists in the Rockwell Automation affected products. A malicious actor could exploit this vulnerability by performing multiple actions on certain web pages of the product causing the affected products to become fully unavailable and require a power cycle to recover.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score7.5 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.5% (top 56%)
CISA exploited listNo
WeaknessCWE-400, CWE-401
Published2024-10-08
Last modified2026-06-17
Publisher (CNA): Rockwell Automation · Vendor: rockwellautomation

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

rockwellautomation compactlogix 5380 firmware UPGRADE
Affected: >= 33.011 and < 33.015
Fixed in: 33.015
Safe to downgrade to: a release before 33.011
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
rockwellautomation compact guardlogix 5380 firmware UPGRADE
Affected: >= 33.011 and < 33.015
Fixed in: 33.015
Safe to downgrade to: a release before 33.011
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
rockwellautomation compactlogix 5480 firmware UPGRADE
Affected: >= 33.011 and < 33.015
Fixed in: 33.015
Safe to downgrade to: a release before 33.011
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
rockwellautomation controllogix 5580 firmware UPGRADE
Affected: >= 33.011 and < 33.015
Fixed in: 33.015
Safe to downgrade to: a release before 33.011
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
rockwellautomation guardlogix 5580 firmware UPGRADE
Affected: >= 33.011 and < 33.015
Fixed in: 33.015
Safe to downgrade to: a release before 33.011
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
rockwellautomation 1756-en4tr firmware MITIGATE
Affected: 3.002
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.002
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-8626?

compactlogix 5380 firmware: upgrade to 33.015; compact guardlogix 5380 firmware: upgrade to 33.015; compactlogix 5480 firmware: upgrade to 33.015. Exact commands for each OS are on this page.

Is CVE-2024-8626 being exploited?

CVE-2024-8626 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-8626 affect?

CVE-2024-8626 affects compactlogix 5380 firmware, compact guardlogix 5380 firmware, compactlogix 5480 firmware. Severity is high (CVSS 7.5). Due to a memory leak, a denial-of-service vulnerability exists in the Rockwell Automation affected products. A malicious actor could exploit this vulnerability by performing multiple actions on certain web pages of the product causing the a

How urgent is CVE-2024-8626?

Priority 42/100. High severity; Remotely exploitable, no login, no user action

Software pages

Rockwell Automation vulnerabilities

Related CVEs

References

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