Description
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.
Affected products
zyxel: nebula fwa70 firmware; zyxel: nebula fwa70; zyxel: nebula fwa505 firmware; zyxel: nebula fwa505; zyxel: nebula fwa510 firmware; zyxel: nebula fwa510; zyxel: nebula fwa515 firmware; zyxel: nebula fwa515; zyxel: nebula fwa710 firmware; zyxel: nebula fwa710; zyxel: nebula lte3301-plus firmware; zyxel: nebula lte3301-plus; zyxel: nebula lte7461-m602 firmware; zyxel: nebula lte7461-m602; zyxel: nebula nr5101 firmware
References1
- www.zyxel.com/global/en/support/security-advisories/zyxel-secur… Vendor Advisory
Metrics
- CVSS 3.1
-
7.2
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 68 · as of 13 November 2026
- CWE
- CWE-78
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