CVE-2025-8008: A security issue exists in the protected mode of EN4TR devices, where sending specifically crafted messages du

Q: How do I fix CVE-2025-8008?

1756-en2tr series a firmware: upgrade to 7.001; 1756-en2tr series b firmware: upgrade to 7.001; 1756-en2tr series c firmware: upgrade to 7.001. Exact commands for each OS are on this page.

Q: Is CVE-2025-8008 being exploited?

CVE-2025-8008 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-8008 affect?

CVE-2025-8008 affects 1756-en2tr series a firmware, 1756-en2tr series b firmware, 1756-en2tr series c firmware. Severity is medium (CVSS 6.5). A security issue exists in the protected mode of EN4TR devices, where sending specifically crafted messages during a Forward Close operation can cause the device to crash.

Q: How urgent is CVE-2025-8008?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADEUPGRADEUPGRADE

CVE-2025-8008 is a medium-severity flaw (CVSS 6.5) affecting 1756-en2tr series a firmware, 1756-en2tr series b firmware, 1756-en2tr series c firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A security issue exists in the protected mode of EN4TR devices, where sending specifically crafted messages during a Forward Close operation can cause the device to crash.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-755
Published	2025-09-09
Last modified	2026-06-17

Publisher (CNA): Rockwell Automation · Vendor: rockwellautomation

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

Am I affected?

Timeline

2025-09-09 13:15 UTCPublished CVE record published
2026-06-17 10:06 UTCUpdated Record last modified

rockwellautomation 1756-en2tr series a firmware UPGRADE

Affected: < 7.001

Fixed in: 7.001

Safe to downgrade to: no unaffected older release

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-en2tr series b firmware UPGRADE

Affected: < 7.001

Fixed in: 7.001

Safe to downgrade to: no unaffected older release

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-en2tr series c firmware UPGRADE

Affected: < 7.001

Fixed in: 7.001

Safe to downgrade to: no unaffected older release

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 UPGRADE

Affected: < 7.001

Fixed in: 7.001

Safe to downgrade to: no unaffected older release

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-en4trxt firmware UPGRADE

Affected: < 7.001

Fixed in: 7.001

Safe to downgrade to: no unaffected older release

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-2025-8008?

1756-en2tr series a firmware: upgrade to 7.001; 1756-en2tr series b firmware: upgrade to 7.001; 1756-en2tr series c firmware: upgrade to 7.001. Exact commands for each OS are on this page.

Is CVE-2025-8008 being exploited?

CVE-2025-8008 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-2025-8008 affect?

CVE-2025-8008 affects 1756-en2tr series a firmware, 1756-en2tr series b firmware, 1756-en2tr series c firmware. Severity is medium (CVSS 6.5). A security issue exists in the protected mode of EN4TR devices, where sending specifically crafted messages during a Forward Close operation can cause the device to crash.

How urgent is CVE-2025-8008?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2025-8007 MEDIUM 6.5 UPGRADE UPGRADE A security issue exists in the protected mode of 1756-EN4TR and 1756-EN2TR communication modules, where a Conc

References

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