high
7.8
CWE
269
Advisory Published
Updated

CVE-2022-30526

First published: Tue Jul 19 2022(Updated: )

A privilege escalation vulnerability was identified in the CLI command 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 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.

Credit: security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
Zyxel USG FLEX 100w firmware>=4.50<=5.30
Zyxel USG FLEX 100w firmware
Zyxel USG FLEX 200>=4.50<=5.30
Zyxel USG FLEX 200 firmware
Zyxel USG FLEX 500>=4.50<=5.30
Zyxel USG FLEX 500 firmware
Zyxel USG FLEX firmware>=4.50<=5.30
Zyxel USG FLEX 700 firmware
Zyxel USG FLEX 50w>=4.16<=5.30
Zyxel USG FLEX 50(W) series firmware
Zyxel USG 20w-VPN Firmware>=4.16<=5.30
Zyxel USG20W-VPN Firmware
Zyxel ATP800>=4.32<=5.30
Zyxel ATP800 Firmware
Zyxel Zywall ATP700 Firmware>=4.32<=5.30
Zyxel ATP700 Firmware
Zyxel ATP500 Firmware>=4.32<=5.30
Zyxel ATP500 Firmware
Zyxel ATP200 firmware>=4.32<=5.30
Zyxel ATP200 firmware
Zyxel ATP100W Firmware>=4.32<=5.30
Zyxel ATP100W Firmware
Zyxel ZyWall ATP100 Firmware>=4.32<=5.30
Zyxel ATP100 Firmware
Zyxel VPN1000 Firmware>=4.30<=5.30
Zyxel VPN1000 Firmware
Zyxel Zywall VPN 300 Firmware>=4.30<=5.30
Zyxel Zywall VPN300
Zyxel VPN100>=4.30<=5.30
Zyxel VPN100 Firmware
Zyxel Zywall VPN 50 Firmware>=4.30<=5.30
Zyxel VPN50 Firmware
Zyxel USG20-VPN>=4.30<=5.30
Zyxel USG20
Zyxel USG2200-VPN Firmware>=4.30<=5.30
Zyxel USG2200-VPN Firmware
Zyxel Zywall 110>=4.30<=5.30
Zyxel Zywall 110 firmware
Zyxel ZyWALL USG 310 firmware>=4.30<=5.30
Zyxel Zywall 310 Firmware
Zyxel Zywall 1100 Firmware>=4.30<=5.30
Zyxel Zywall 1100 Firmware
Zyxel USG 40 firmware>=4.09<=4.72
Zyxel USG 40
Zyxel USG 40w firmware>=4.09<=4.72
Zyxel USG40W Firmware
Zyxel USG60 Firmware>=4.09<=4.72
Zyxel USG 60
Zyxel USG60W Firmware>=4.09<=4.72
Zyxel USG60W Firmware

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2022-30526.

  • What is the severity of CVE-2022-30526?

    The severity of CVE-2022-30526 is high with a score of 7.8.

  • Which Zyxel products are affected by CVE-2022-30526?

    Zyxel USG FLEX 100(W), USG FLEX 200, USG FLEX 500, USG FLEX 700, and USG FLEX 50(W) firmware versions 4.50 through 5.30 are affected.

  • How can I fix CVE-2022-30526?

    Apply the latest firmware update provided by Zyxel to fix CVE-2022-30526.

  • Where can I find more information about CVE-2022-30526?

    You can find more information about CVE-2022-30526 on the Zyxel website and Packet Storm Security.

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