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Medium severity6.5NVD Advisory· Published Jul 19, 2022· Updated Jun 17, 2026

CVE-2022-2030

CVE-2022-2030

Description

A directory traversal vulnerability caused by specific character sequences within an improperly sanitized URL was identified in some CGI programs of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.11 through 4.72, that could allow an authenticated attacker to access some restricted files on a vulnerable device.

Affected products

12
  • Zyxel/USG FLEX 100(W)llm-fuzzy2 versions
    4.50 - 5.30+ 1 more
    • (no CPE)range: 4.50 - 5.30
    • (no CPE)range: 4.50 through 5.30
  • Zyxel/USG FLEX 200llm-fuzzy2 versions
    4.50 - 5.30+ 1 more
    • (no CPE)range: 4.50 - 5.30
    • (no CPE)range: 4.50 through 5.30
  • Zyxel/USG FLEX 500llm-fuzzy
    Range: 4.50 - 5.30
  • Zyxel/ATP seriescpe-rescue
    Range: 4.32 through 5.30
  • Zyxel/USG 20(W)-VPN firmwarev5
    Range: 4.16 through 5.30
  • Zyxel/USG FLEX 500 firmwarev5
    Range: 4.50 through 5.30
  • Zyxel/USG FLEX 50(W)cpe-rescue
    Range: 4.16 through 5.30
  • Zyxel/USG FLEX 700 firmwarev5
    Range: 4.50 through 5.30
  • Zyxel/ZyWALL/USG seriescpe-rescue
    Range: 4.11 through 4.72
  • Zyxel/VPN seriescpe-rescue
    Range: 4.30 through 5.30

Patches

Vulnerability mechanics

References

1

News mentions

0

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