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CVE-2026-0711

6.8 · MEDIUM

A post-authentication command injection vulnerability in the EasyMesh-related APIs of Zyxel DX3300-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated, adjacent attacker with…

Published Apr 28, 2026zyxelCWE-78EPSS 0.85%

Overview

CVE-2026-0711 is a medium-severity vulnerability affecting zyxel nr5307_firmware. It was published on April 28, 2026 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A post-authentication command injection vulnerability in the EasyMesh-related APIs of Zyxel DX3300-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated, adjacent attacker with administrator privileges to execute OS commands on an affected device.

Remediation

Check the references section for vendor advisories and patches from zyxel. Update nr5307_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
zyxelnr5307_firmware>= 0, < 2.00\(acjt.3\)c0Affected
zyxelnebula_fwa515_firmware>= 0, < 1.60\(acpz.0\)v0Affected
zyxeldx3300-t0_firmware>= 0, < 5.50\(abvy.7.2\)c0Affected
zyxeldx3300-t1_firmware>= 0, < 5.50\(abvy.7.2\)c0Affected
zyxeldx3301-t0_firmware>= 0, < 5.50\(abvy.7.2\)c0Affected
zyxeldx5401-b0_firmware>= 0, < 5.17\(abyo.7.2\)c0Affected
zyxeldx5401-b1_firmware>= 0, < 5.17\(abyo.7.2\)c0Affected
zyxelee3301-00_firmware>= 0, < 5.63\(acmu.3.1\)c0Affected
zyxelee5301-00_firmware>= 0, < 5.63\(acld.3.1\)c0Affected
zyxelee6510-10_firmware>= 0, < 5.19\(acjq.4.2\)c0Affected

References

Refwww.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-and-wireless-extenders-04-28-2026

How CyberStrike helps

Frequently asked questions

What is CVE-2026-0711?

CVE-2026-0711 is a medium-severity vulnerability affecting zyxel nr5307_firmware. It was published on April 28, 2026 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2026-0711?

This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-0711?

Check the references section for vendor advisories and patches from zyxel. Update nr5307_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-0711?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-0711 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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