A cross-site scripting (XSS) vulnerability in the CGI program of Zyxel ZyWALL/USG series firmware versions 4.30 through 4.72, VPN series firmware versions 4.30 through 5.31, USG FLEX series firmware versions 4.50 through 5.31, and ATP series firmware versions 4.32 through 5.31, which could allow an attacker to trick a user into visiting a crafted URL with the XSS payload. Then, the attacker could gain access to some browser-based information if the malicious script is executed on the victim’s browser.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00669.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Zyxel ZyWALL/USG series firmware affected
Version Status Constraints
4.30 through 4.72 affected —
Zyxel VPN series firmware affected
Version Status Constraints
4.30 through 5.31 affected —
Zyxel USG FLEX series firmware affected
Version Status Constraints
4.50 through 5.31 affected —
Zyxel ATP series firmware affected
Version Status Constraints
4.32 through 5.31 affected —

Configuration 1 [-]

AND
cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND
cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND
cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND
cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND
cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*

Configuration 6 [-]

AND
cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*

Configuration 7 [-]

AND
cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*

Configuration 8 [-]

AND
cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*

Configuration 9 [-]

AND
cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*

Configuration 10 [-]

AND
cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:*

Configuration 11 [-]

AND
cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*

Configuration 12 [-]

AND
cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vpn1000:-:*:*:*:*:*:*:*

Configuration 13 [-]

AND
cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vpn300:-:*:*:*:*:*:*:*

Configuration 14 [-]

AND
cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vpn100:-:*:*:*:*:*:*:*

Configuration 15 [-]

AND
cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vpn50:-:*:*:*:*:*:*:*

Configuration 16 [-]

AND
cpe:2.3:o:zyxel:usg40_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg40:-:*:*:*:*:*:*:*

Configuration 17 [-]

AND
cpe:2.3:o:zyxel:usg40w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg40w:-:*:*:*:*:*:*:*

Configuration 18 [-]

AND
cpe:2.3:o:zyxel:usg60_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg60:-:*:*:*:*:*:*:*

Configuration 19 [-]

AND
cpe:2.3:o:zyxel:usg60w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg60w:-:*:*:*:*:*:*:*

No data.

No data.

Project Subscriptions

Vendors Products
Zyxel Subscribe
Atp100 Subscribe
Atp100 Firmware Subscribe
Atp100w Subscribe
Atp100w Firmware Subscribe
Atp200 Subscribe
Atp200 Firmware Subscribe
Atp500 Subscribe
Atp500 Firmware Subscribe
Atp700 Subscribe
Atp700 Firmware Subscribe
Atp800 Subscribe
Atp800 Firmware Subscribe
Usg40 Subscribe
Usg40 Firmware Subscribe
Usg40w Subscribe
Usg40w Firmware Subscribe
Usg60 Subscribe
Usg60 Firmware Subscribe
Usg60w Subscribe
Usg60w Firmware Subscribe
Usg Flex 100w Subscribe
Usg Flex 100w Firmware Subscribe
Usg Flex 200 Subscribe
Usg Flex 200 Firmware Subscribe
Usg Flex 500 Subscribe
Usg Flex 500 Firmware Subscribe
Usg Flex 50w Subscribe
Usg Flex 50w Firmware Subscribe
Usg Flex 700 Subscribe
Usg Flex 700 Firmware Subscribe
Vpn100 Subscribe
Vpn1000 Subscribe
Vpn1000 Firmware Subscribe
Vpn100 Firmware Subscribe
Vpn300 Subscribe
Vpn300 Firmware Subscribe
Vpn50 Subscribe
Vpn50 Firmware Subscribe
Advisories
Source ID Title
EUVD EUVD EUVD-2022-43878 A cross-site scripting (XSS) vulnerability in the CGI program of Zyxel ZyWALL/USG series firmware versions 4.30 through 4.72, VPN series firmware versions 4.30 through 5.31, USG FLEX series firmware versions 4.50 through 5.31, and ATP series firmware versions 4.32 through 5.31, which could allow an attacker to trick a user into visiting a crafted URL with the XSS payload. Then, the attacker could gain access to some browser-based information if the malicious script is executed on the victim’s browser.
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-xss-vulnerability-in-firewalls cve-icon cve-icon
History

Wed, 23 Apr 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Zyxel

Published:

Updated: 2025-04-23T20:00:23.891Z

Reserved: 2022-09-12T00:00:00.000Z

Link: CVE-2022-40603

cve-icon Vulnrichment

Updated: 2024-08-03T12:21:46.447Z

cve-icon NVD

Status : Modified

Published: 2022-12-06T02:15:09.730

Modified: 2024-11-21T07:21:42.180

Link: CVE-2022-40603

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses