CVE-2025-6599
5.3 · MEDIUMOverview
CVE-2025-6599 is a medium-severity vulnerability affecting zyxel lte3301-plus_firmware. It was published on November 18, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An uncontrolled resource consumption vulnerability in the web server of Zyxel DX3301-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an attacker to perform Slowloris‑style denial‑of‑service (DoS) attacks. Such attacks may temporarily block legitimate HTTP requests and partially disrupt access to the web management interface, while other networking services remain unaffected.
Remediation
Check the references section for vendor advisories and patches from zyxel. Update lte3301-plus_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
| Vendor | Product | Versions | Status |
|---|---|---|---|
| zyxel | lte3301-plus_firmware | 0 | Affected |
| zyxel | nr5103_firmware | 0 | Affected |
| zyxel | nr5103e_firmware | 0 | Affected |
| zyxel | nr5309_firmware | 0 | Affected |
| zyxel | nr7302_firmware | 0 | Affected |
| zyxel | nr7303_firmware | 0 | Affected |
| zyxel | nebula_fwa505_firmware | 0 | Affected |
| zyxel | nebula_fwa510_firmware | 0 | Affected |
| zyxel | nebula_fwa515_firmware | 0 | Affected |
| zyxel | nebula_fwa710_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2025-6599?
CVE-2025-6599 is a medium-severity vulnerability affecting zyxel lte3301-plus_firmware. It was published on November 18, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2025-6599?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-6599?
Check the references section for vendor advisories and patches from zyxel. Update lte3301-plus_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-2025-6599?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-6599 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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