CVE-2025-3618: A denial-of-service vulnerability exists in the Rockwell Automation ThinManager

Routine

MEDIUM 5.5UPGRADE

CVE-2025-3618 is a medium-severity flaw (CVSS 5.5) affecting thinmanager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A denial-of-service vulnerability exists in the Rockwell Automation ThinManager. The software fails to adequately verify the outcome of memory allocation while processing Type 18 messages. If exploited, a threat actor could cause a denial-of-service on the target software.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-119
Published	2025-04-15
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

2025-04-15 18:15 UTCPublished CVE record published
2026-06-17 09:20 UTCUpdated Record last modified

rockwellautomation thinmanager UPGRADE

Affected: < 11.2.11 · >= 12.0.0 and < 12.0.9 · >= 12.1.0 and < 12.1.10 · >= 13.0.0 and < 13.0.7 · >= 13.1.0 and < 13.1.5 · >= 13.2.0 and < 13.2.4 · >= 14.0.0 and < 14.0.2

Fixed in: 11.2.11, 12.0.9, 12.1.10, 13.0.7, 13.1.5, 13.2.4, 14.0.2

Safe to downgrade to: a release before 12.0.0

1. Check installed version

apt-cache policy thinmanager || rpm -q thinmanager || thinmanager --version

2. UPGRADE to 11.2.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade thinmanager

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade thinmanager

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 12.0.0 (Debian / Ubuntu)

apt-cache madison thinmanager sudo apt install thinmanager=<VERSION_BEFORE_12.0.0> sudo apt-mark hold thinmanager

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list thinmanager sudo dnf downgrade thinmanager-<VERSION_BEFORE_12.0.0> sudo dnf versionlock add thinmanager

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-3618?

thinmanager: upgrade to 11.2.11, 12.0.9, 12.1.10, 13.0.7, 13.1.5, 13.2.4, 14.0.2. Exact commands for each OS are on this page.

Is CVE-2025-3618 being exploited?

CVE-2025-3618 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-2025-3618 affect?

CVE-2025-3618 affects thinmanager. Severity is medium (CVSS 5.5). A denial-of-service vulnerability exists in the Rockwell Automation ThinManager. The software fails to adequately verify the outcome of memory allocation while processing Type 18 messages. If exploited, a threat actor could cause a denial-o

How urgent is CVE-2025-3618?

Priority 39/100. No elevated risk signals yet.

Software pages

Rockwell Automation vulnerabilities

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References

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