GCVE - cpe:2.3:a:zyxel:usg20(w)-vpn_firmware:*:*:*:*:*:*:*:*

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cpe:2.3:a:zyxel:usg20(w)-vpn_firmware:*:*:*:*:*:*:*:*

part: a version: * update: *

Vendor	Zyxel (`d3fcf896-5708-55f8-8f74-3e19a9d55b89`)
Product	Usg20(W) Vpn Firmware (`b64cf7d4-8318-5878-a299-7e69e53af70e`)
Edition	*
Language	*
Software edition	*
Target software	*
Target hardware	*
Other	*
Notes	Imported from gcve-enriched-dumps CVE data

PURL mappings

PURL	Source	Last updated
No PURL mappings for this CPE yet.

Vulnerability references

Identifier	cpeApplicability	Submitted	db.gcve.eu details	Rationale
`CVE:CVE-2023-33010`	vulnerable	2026-06-08 06:04:48.251891	Details available CRITICAL (9.8) A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions 4.32 through 5.36 Patch 1, USG FLEX series firmware versions 4.50 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.25 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.25 through 5.36 Patch 1, VPN series firmware versions 4.30 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.25 through 4.73 Patch 1, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on an affected device. Published: 2023-05-24T00:00:00.000Z Updated: 2025-10-21T23:05:47.497Z Open on db.gcve.eu Reference links https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls	Imported from gcve-enriched-dumps CVE data
`CVE:CVE-2023-33009`	vulnerable	2026-06-08 06:04:48.182755	Details available CRITICAL (9.8) A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4.60 through 5.36 Patch 1, USG FLEX series firmware versions 4.60 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.60 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.60 through 5.36 Patch 1, VPN series firmware versions 4.60 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.60 through 4.73 Patch 1, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on an affected device. Published: 2023-05-24T00:00:00.000Z Updated: 2025-10-21T23:05:47.636Z Open on db.gcve.eu Reference links https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls	Imported from gcve-enriched-dumps CVE data
`CVE:CVE-2023-27991`	vulnerable	2026-06-08 05:57:42.730289	Details available HIGH (8.8) The post-authentication command injection vulnerability in the CLI command of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker to execute some OS commands remotely. Published: 2023-04-24T00:00:00.000Z Updated: 2025-02-04T16:47:55.646Z Open on db.gcve.eu Reference links https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-xss-vulnerability-and-post-authentication-command-injection-vulnerability-in-firewalls	Imported from gcve-enriched-dumps CVE data
`CVE:CVE-2023-27990`	vulnerable	2026-06-08 05:57:42.694447	Details available MEDIUM (4.8) The cross-site scripting (XSS) vulnerability in Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker with administrator privileges to store malicious scripts in a vulnerable device. A successful XSS attack could then result in the stored malicious scripts being executed when the user visits the Logs page of the GUI on the device. Published: 2023-04-24T00:00:00.000Z Updated: 2024-08-02T12:23:30.803Z Open on db.gcve.eu Reference links https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-xss-vulnerability-and-post-authentication-command-injection-vulnerability-in-firewalls	Imported from gcve-enriched-dumps CVE data
`CVE:CVE-2023-22918`	vulnerable	2026-06-08 05:54:27.389994	Details available MEDIUM (6.5) A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, VPN series firmware versions 4.30 through 5.35, NWA110AX firmware version 6.50(ABTG.2) and earlier versions, WAC500 firmware version 6.50(ABVS.0) and earlier versions, and WAX510D firmware version 6.50(ABTF.2) and earlier versions, which could allow a remote authenticated attacker to retrieve encrypted information of the administrator on an affected device. Published: 2023-04-24T00:00:00.000Z Updated: 2025-02-12T16:01:35.920Z Open on db.gcve.eu Reference links https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-of-firewalls-and-aps	Imported from gcve-enriched-dumps CVE data
`CVE:CVE-2023-22917`	vulnerable	2026-06-08 05:54:27.387906	db.gcve.eu details were skipped to keep the page responsive. Open on db.gcve.eu	Imported from gcve-enriched-dumps CVE data
`CVE:CVE-2023-22916`	vulnerable	2026-06-08 05:54:27.375660	db.gcve.eu details were skipped to keep the page responsive. Open on db.gcve.eu	Imported from gcve-enriched-dumps CVE data
`CVE:CVE-2023-22915`	vulnerable	2026-06-08 05:54:27.369210	db.gcve.eu details were skipped to keep the page responsive. Open on db.gcve.eu	Imported from gcve-enriched-dumps CVE data

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