CVE-2026-54404: A malicious actor with access to the network and low privileges could exploit a series of authenticated SQL In
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HIGH 8.8UPGRADEUPGRADEUPGRADE
CVE-2026-54404 is a high-severity flaw (CVSS 8.8) affecting unifi dream machine beast firmware, enterprise fortress gateway firmware, unifi dream router firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A malicious actor with access to the network and low privileges could exploit a series of authenticated SQL Injection vulnerabilities found in UniFi OS to escalate privileges within such UniFi OS devices or instances.
Last updated 2026-07-10 · 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
ui unifi dream machine beast firmware UPGRADE
Affected: <= 5.1.15
Fixed in: newer than 5.1.15
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.
ui enterprise fortress gateway firmware UPGRADE
Affected: <= 5.1.15
Fixed in: newer than 5.1.15
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.
ui unifi dream router firmware UPGRADE
Affected: <= 5.1.15
Fixed in: newer than 5.1.15
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.
ui unifi dream wall firmware UPGRADE
Affected: <= 5.1.15
Fixed in: newer than 5.1.15
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.
ui unifi dream router 7 firmware UPGRADE
Affected: <= 5.1.15
Fixed in: newer than 5.1.15
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.
ui unifi express 7 firmware UPGRADE
Affected: <= 5.1.15
Fixed in: newer than 5.1.15
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-2026-54404?
unifi dream machine beast firmware: upgrade to newer than 5.1.15; enterprise fortress gateway firmware: upgrade to newer than 5.1.15; unifi dream router firmware: upgrade to newer than 5.1.15. Exact commands for each OS are on this page.
Is CVE-2026-54404 being exploited?
CVE-2026-54404 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-2026-54404 affect?
CVE-2026-54404 affects unifi dream machine beast firmware, enterprise fortress gateway firmware, unifi dream router firmware. Severity is high (CVSS 8.8). A malicious actor with access to the network and low privileges could exploit a series of authenticated SQL Injection vulnerabilities found in UniFi OS to escalate privileges within such UniFi OS devices or instances.
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