CVE-2026-0715: Moxa Arm-based industrial computers running Moxa Industrial Linux Secure use a device-unique bootloader passwo
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Routine
MEDIUM 6.8WATCHLISTUPGRADEUPGRADEUPGRADE
CVE-2026-0715 is a medium-severity flaw (CVSS 6.8) affecting uc-1222a firmware, uc-2222a-t-us firmware, uc-2222a-t firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Moxa Arm-based industrial computers running Moxa Industrial Linux Secure use a device-unique bootloader password provided on the device. An attacker with physical access to the device could use this information to access the bootloader menu via a serial interface. Access to the bootloader menu does not allow full system takeover or privilege escalation. The bootloader enforces digital signature verification and only permits flashing of Moxa-sign
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
Published CVE record published
Updated Record last modified
moxa uc-1222a firmware UPGRADE
Affected: <= 1.4
Fixed in: newer than 1.4
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.
moxa uc-2222a-t-us firmware UPGRADE
Affected: <= 1.4
Fixed in: newer than 1.4
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.
moxa uc-2222a-t firmware UPGRADE
Affected: <= 1.4
Fixed in: newer than 1.4
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.
moxa uc-2222a-t-ap firmware UPGRADE
Affected: <= 1.4
Fixed in: newer than 1.4
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.
moxa uc-2222a-t-eu firmware UPGRADE
Affected: <= 1.4
Fixed in: newer than 1.4
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.
moxa uc-3434a-t-lte-wifi firmware UPGRADE
Affected: <= 1.2
Fixed in: newer than 1.2
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 sourceNVD · 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-2026-0715?
uc-1222a firmware: upgrade to newer than 1.4; uc-2222a-t-us firmware: upgrade to newer than 1.4; uc-2222a-t firmware: upgrade to newer than 1.4. Exact commands for each OS are on this page.
Is CVE-2026-0715 being exploited?
CVE-2026-0715 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-2026-0715 affect?
CVE-2026-0715 affects uc-1222a firmware, uc-2222a-t-us firmware, uc-2222a-t firmware. Severity is medium (CVSS 6.8). Moxa Arm-based industrial computers running Moxa Industrial Linux Secure use a device-unique bootloader password provided on the device. An attacker with physical access to the device could use this information to access the bootloader menu
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