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CVE-2022-30309: In Festo Controller CECC-X-M1 product family in multiple versions, the http-endpoint "cecc-x-web-viewer-reques

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CRITICAL 9.8REMOTEUPGRADEUPGRADEUPGRADE

CVE-2022-30309 is a critical-severity flaw (CVSS 9.8) affecting controller cecc-x-m1 firmware, controller cecc-x-m1-mv firmware, controller cecc-x-m1-mv-s1 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Festo Controller CECC-X-M1 product family in multiple versions, the http-endpoint "cecc-x-web-viewer-request-off" POST request doesn’t check for port syntax. This can result in unauthorized execution of system commands with root privileges due to improper access control command injection.

Why this priority

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

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance2.9% (top 13%)
CISA exploited listNo
WeaknessCWE-78, CWE-863
Published2022-06-13
Last modified2026-06-17
Publisher (CNA): CERT VDE · Vendor: festo

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

festo controller cecc-x-m1 firmware UPGRADE
Affected: <= 3.8.14 · 4.0.14
Fixed in: newer than 3.8.14
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.
festo controller cecc-x-m1-mv firmware UPGRADE
Affected: <= 3.8.14 · 4.0.14
Fixed in: newer than 3.8.14
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.
festo controller cecc-x-m1-mv-s1 firmware UPGRADE
Affected: <= 3.8.14 · 4.0.14
Fixed in: newer than 3.8.14
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.
festo controller cecc-x-m1-ys-l1 firmware UPGRADE
Affected: <= 3.8.14
Fixed in: newer than 3.8.14
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.
festo controller cecc-x-m1-ys-l2 firmware UPGRADE
Affected: <= 3.8.14
Fixed in: newer than 3.8.14
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.
festo controller cecc-x-m1-y-yjkp firmware UPGRADE
Affected: <= 3.8.14
Fixed in: newer than 3.8.14
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-2022-30309?

controller cecc-x-m1 firmware: upgrade to newer than 3.8.14; controller cecc-x-m1-mv firmware: upgrade to newer than 3.8.14; controller cecc-x-m1-mv-s1 firmware: upgrade to newer than 3.8.14. Exact commands for each OS are on this page.

Is CVE-2022-30309 being exploited?

CVE-2022-30309 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-2022-30309 affect?

CVE-2022-30309 affects controller cecc-x-m1 firmware, controller cecc-x-m1-mv firmware, controller cecc-x-m1-mv-s1 firmware. Severity is critical (CVSS 9.8). In Festo Controller CECC-X-M1 product family in multiple versions, the http-endpoint "cecc-x-web-viewer-request-off" POST request doesn’t check for port syntax. This can result in unauthorized execution of system commands with root privileg

How urgent is CVE-2022-30309?

Priority 61/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

References

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