CVE-2026-1460: A post-authentication command injection vulnerability in the “DomainName” parameter of the DHCP configuration
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HIGH 7.2MITIGATEMITIGATEMITIGATE
CVE-2026-1460 is a high-severity flaw (CVSS 7.2) affecting nebula fwa70 firmware, nebula fwa505 firmware, nebula fwa510 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A post-authentication command injection vulnerability in the “DomainName” parameter of the DHCP configuration file in Zyxel DX3301-T0 and EX3301-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated attacker with administrator privileges to execute OS commands on an affected device.
Why this priority
High severity
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-07-25 · 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
zyxel nebula fwa70 firmware MITIGATE
Affected: < 1.51\(acrf.0\)v0
Fixed in: 1.51\(acrf.0\)v0
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.
zyxel nebula fwa505 firmware MITIGATE
Affected: < 1.60\(acko.3\)v0
Fixed in: 1.60\(acko.3\)v0
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.
zyxel nebula fwa510 firmware MITIGATE
Affected: < 1.60\(acgd.1\)v0
Fixed in: 1.60\(acgd.1\)v0
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.
zyxel nebula fwa515 firmware MITIGATE
Affected: < 1.60\(acpz.1\)v0
Fixed in: 1.60\(acpz.1\)v0
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.
zyxel nebula fwa710 firmware MITIGATE
Affected: < 1.60\(acgc.2\)v0
Fixed in: 1.60\(acgc.2\)v0
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.
zyxel nebula lte3301-plus firmware MITIGATE
Affected: < 1.18\(acca.7\)v0
Fixed in: 1.18\(acca.7\)v0
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-2026-1460?
nebula fwa70 firmware: mitigate or apply the listed mitigation; nebula fwa505 firmware: mitigate or apply the listed mitigation; nebula fwa510 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2026-1460 being exploited?
CVE-2026-1460 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-2026-1460 affect?
CVE-2026-1460 affects nebula fwa70 firmware, nebula fwa505 firmware, nebula fwa510 firmware. Severity is high (CVSS 7.2). A post-authentication command injection vulnerability in the “DomainName” parameter of the DHCP configuration file in Zyxel DX3301-T0 and EX3301-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated attacker with admini
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