What’s Vulnerable › Products

Zyxel USG FLEX H series uOS firmware vulnerabilities

5 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 2 published in the last 12 months.

Check whether your Zyxel USG FLEX H series uOS firmware version is affected

Latest Zyxel USG FLEX H series uOS firmware vulnerabilities

• CVE-2025-1732 — (CVSS 6.7)
• CVE-2025-1731 — (CVSS 7.8)
• CVE-2024-9677 — (CVSS 7.8)
• CVE-2023-6399 — (CVSS 6.5)
• CVE-2023-6398 — (CVSS 7.2)