high
7.8
CWE
78 88
Advisory Published
Updated

CVE-2022-26532: OS Command Injection

First published: Tue May 24 2022(Updated: )

A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, VPN series firmware versions 4.30 through 5.21, NSG series firmware versions 1.00 through 1.33 Patch 4, NXC2500 firmware version 6.10(AAIG.3) and earlier versions, NAP203 firmware version 6.25(ABFA.7) and earlier versions, NWA50AX firmware version 6.25(ABYW.5) and earlier versions, WAC500 firmware version 6.30(ABVS.2) and earlier versions, and WAX510D firmware version 6.30(ABTF.2) and earlier versions, that could allow a local authenticated attacker to execute arbitrary OS commands by including crafted arguments to the CLI command.

Credit: security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
Zyxel VPN100>=4.30<=5.21
Zyxel Zywall VPN100
Zyxel VPN1000 Firmware>=4.30<=5.21
Zyxel VPN1000 Firmware
Zyxel Zywall VPN 300 Firmware>=4.30<=5.21
Zyxel Zywall VPN300
Zyxel Zywall VPN 50 Firmware>=4.30<=5.21
Zyxel VPN50 Firmware
Zyxel ZyWall ATP100 Firmware>=4.32<=5.21
Zyxel ATP100 Firmware
Zyxel ATP100W Firmware>=4.32<=5.21
Zyxel ATP100W Firmware
Zyxel ATP200 firmware>=4.32<=5.21
Zyxel Zywall ATP200
Zyxel ATP500 Firmware>=4.32<=5.21
Zyxel ATP500 Firmware
Zyxel Zywall ATP700>=4.32<=5.21
Zyxel ATP700 Firmware
Zyxel Zywall ATP800 Firmware>=4.32<=5.21
Zyxel Zywall ATP800 Firmware
Zyxel USG 110>=4.09<=4.71
Zyxel USG 110 Firmware
Zyxel USG1100 firmware>=4.09<=4.71
Zyxel USG 1100 firmware
Zyxel USG1900 Firmware>=4.09<=4.71
Zyxel USG1900
Zyxel USG 20W>=4.09<=4.71
Zyxel USG20
Zyxel USG 20W-VPN Firmware>=4.09<=4.71
Zyxel USG20
Zyxel USG2200-VPN Firmware>=4.09<=4.71
Zyxel USG2200-VPN Firmware
Zyxel ZyWALL USG 310 firmware>=4.09<=4.71
Zyxel ZyWALL USG 310
Zyxel USG40W Firmware>=4.09<=4.71
Zyxel USG40W
Zyxel USG40W Firmware>=4.09<=4.71
Zyxel USG40W
Zyxel USG60 Firmware>=4.09<=4.71
Zyxel USG60 Firmware
Zyxel USG60W Firmware>=4.09<=4.71
Zyxel USG 60w firmware
Zyxel USG Flex 100 firmware>=4.50<=5.21
Zyxel USG Flex 100 firmware
Zyxel USG FLEX 100w firmware>=4.50<=5.21
Zyxel USG FLEX 100w firmware
Zyxel USG FLEX firmware>=4.50<=5.21
Zyxel USG FLEX 200 firmware
Zyxel USG FLEX firmware>=4.50<=5.21
Zyxel USG FLEX 500 firmware
Zyxel USG FLEX firmware>=4.50<=5.21
Zyxel USG FLEX 700 firmware
Zyxel USG200 Firmware>=4.09<=4.71
Zyxel USG200 Firmware
Zyxel USG20-VPN Firmware>=4.09<=4.71
Zyxel USG20 Firmware
Zyxel USG210 Firmware>=4.09<=4.71
Zyxel USG210 Firmware
Zyxel USG2200-VPN Firmware>=4.09<=4.71
Zyxel USG2200-VPN
Zyxel USG300 Firmware>=4.09<=4.71
Zyxel USG300 Firmware
Zyxel USG 310 firmware>=4.09<=4.71
Zyxel USG 310
Zyxel NSG firmware>=1.00<1.33
Zyxel NSG firmware=1.33
Zyxel NSG firmware=1.33-patch1
Zyxel NSG firmware=1.33-patch2
Zyxel NSG firmware=1.33-patch3
Zyxel NSG firmware=1.33-patch4
Zyxel NSG firmware
Zyxel NSG100 Firmware>=1.00<1.33
Zyxel NSG100 Firmware=1.33
Zyxel NSG100 Firmware=1.33-patch1
Zyxel NSG100 Firmware=1.33-patch2
Zyxel NSG100 Firmware=1.33-patch3
Zyxel NSG100 Firmware=1.33-patch4
Zyxel NSG100 Firmware
Zyxel NSG50 Firmware>=1.00<1.33
Zyxel NSG50 Firmware=1.33
Zyxel NSG50 Firmware=1.33-patch1
Zyxel NSG50 Firmware=1.33-patch2
Zyxel NSG50 Firmware=1.33-patch3
Zyxel NSG50 Firmware=1.33-patch4
Zyxel NSG firmware
Zyxel NXC2500 firmware<=6.10\(aaig.3\)
Zyxel NXC2500 firmware
Zyxel NXC5500<=6.10\(aaos.3\)
Zyxel NXC5500 Firmware
Zyxel NAP203 Firmware<=6.25\(abfa.7\)
Zyxel NAP203 firmware
Zyxel NAP303<=6.25\(abex.7\)
Zyxel NAP303
Zyxel NAP353<=6.25\(abey.7\)
Zyxel NAP353 Firmware
Zyxel NWA50AX-Pro firmware<=6.25\(abyw.5\)
Zyxel NWA50AX-PRO
Zyxel NWA55AXE Firmware<=6.25\(abzl.5\)
Zyxel NWA55AXE Firmware
Zyxel NWA90AX Pro Firmware<=6.27\(accv.2\)
Zyxel NWA90AX Firmware
Zyxel NWA110AX<=6.30\(abtg.2\)
Zyxel NWA110AX firmware
Zyxel NWA210AX<=6.30\(abtd.2\)
Zyxel NWA210AX Firmware
Zyxel NWA5123-AC-HD Firmware<=6.25\(abin.6\)
Zyxel NWA1123-AC HD
Zyxel NWA1123-AC PRO firmware<=6.25\(abhd.7\)
Zyxel NWA1123-AC-PRO Firmware
Zyxel NWA1123-AC PRO firmware<=6.30\(abvt.2\)
Zyxel NWA1123-AC PRO firmware
Zyxel NWA1302-AC Firmware<=6.25\(abku.6\)
Zyxel NWA1302-AC Firmware
Zyxel NWA5123-AC HD Firmware<=6.25\(abim.6\)
Zyxel NWA5123-AC HD
Zyxel WAC500H Firmware<=6.30\(abwa.2\)
Zyxel WAC500H Firmware
Zyxel WAC500H Firmware<=6.30\(abvs.2\)
Zyxel WAC500 firmware
Zyxel WAC5302D-SV2<=6.10\(abfh.10\)
Zyxel WAC5302D-S Firmware
Zyxel WAC5302D-SV2<=6.25\(abvz.6\)
Zyxel WAC5302D-SV2 Firmware
Zyxel WAC6103D-I<=6.25\(aaxh.7\)
Zyxel WAC6103D-I Firmware
Zyxel WAC6303D-S<=6.25\(abgl.6\)
Zyxel WAC6303D-S firmware
Zyxel WAC6502D-S<=6.25\(aasd.7\)
Zyxel WAC6502D-E Firmware
Zyxel WAC6502D-S<=6.25\(aase.7\)
Zyxel WAC6502D-S Firmware
Zyxel WAC6503D-S Firmware<=6.25\(aasf.7\)
Zyxel WAC6503D-S Firmware
Zyxel WAC6553D-S<=6.25\(aasg.7\)
Zyxel WAC6553D-S Firmware
Zyxel WAC6552D-S Firmware<=6.25\(abio.7\)
Zyxel WAC6552D-S Firmware
Zyxel WAX510D firmware<=6.30\(abtf.2\)
Zyxel WAX510D firmware
Zyxel WAX610D<=6.30\(abte.2\)
Zyxel WAX610D Firmware
Zyxel WAX630S Firmware<=6.30\(abzd.2\)
Zyxel WAX630S Firmware
Zyxel WAX650S Firmware<=6.30\(abrm.2\)
Zyxel WAX650S Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2022-26532?

    CVE-2022-26532 is categorized as a high-severity vulnerability due to its potential to enable remote code execution.

  • How do I fix CVE-2022-26532?

    To mitigate CVE-2022-26532, users should upgrade the affected Zyxel firmware to the latest recommended version.

  • Which Zyxel devices are affected by CVE-2022-26532?

    CVE-2022-26532 impacts various Zyxel devices including USG, VPN, USG FLEX, ATP, and NSG series firmware versions specified in the vulnerability details.

  • What does CVE-2022-26532 exploit?

    CVE-2022-26532 exploits an argument injection vulnerability in the 'packet-trace' command of affected Zyxel device firmware.

  • How can I determine if my Zyxel device is vulnerable to CVE-2022-26532?

    You can determine if your Zyxel device is vulnerable to CVE-2022-26532 by checking the firmware version against the list of affected versions provided in the vulnerability report.

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