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cpe:2.3:h:zyxel:usg20-vpn:-:*:*:*:*:*:*:*

part: h version: - update: *

VendorZyxel (d3fcf896-5708-55f8-8f74-3e19a9d55b89)
ProductUsg20 Vpn (3ce2267c-16d9-55a5-856d-3dc1f68377b5)
Edition*
Language*
Software edition*
Target software*
Target hardware*
Other*
NotesImported from NVD CPE 2.0 feed

PURL mappings

PURLSourceLast updated
No PURL mappings for this CPE yet.

Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2023-6764 not_vulnerable 2026-06-08 06:21:55.761778 Details available
HIGH (8.1)
A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device’s memory layout and configuration.
Published: 2024-02-20T02:14:09.814Z
Updated: 2024-08-02T08:42:07.430Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2023-6399 not_vulnerable 2026-06-08 06:19:47.207570 Details available
MEDIUM (5.7)
A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1, and USG FLEX H series firmware versions from 1.10 through 1.10 Patch 1 could allow an authenticated IPSec VPN user to cause DoS conditions against the “deviceid” daemon by sending a crafted hostname to an affected device if it has the “Device Insight” feature enabled.
Published: 2024-02-20T01:42:21.027Z
Updated: 2024-08-02T08:28:21.797Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2023-6398 not_vulnerable 2026-06-08 06:19:47.188951 Details available
HIGH (7.2)
A post-authentication command injection vulnerability in the file upload binary in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1, USG FLEX H series firmware versions from 1.10 through 1.10 Patch 1, NWA50AX firmware versions through 6.29(ABYW.3), WAC500 firmware versions through 6.65(ABVS.1), WAX300H firmware versions through 6.60(ACHF.1), and WBE660S firmware versions through 6.65(ACGG.1) could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device via FTP.
Published: 2024-02-20T01:34:32.229Z
Updated: 2024-08-25T15:46:49.897Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2023-33010 not_vulnerable 2026-06-08 06:04:48.254728 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
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2023-33009 not_vulnerable 2026-06-08 06:04:48.231422 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
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2023-27991 not_vulnerable 2026-06-08 05:57:42.731334 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2023-27990 not_vulnerable 2026-06-08 05:57:42.724504 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2023-22918 not_vulnerable 2026-06-08 05:54:27.401350 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2022-38547 not_vulnerable 2026-06-08 05:47:16.633695 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2022-30526 not_vulnerable 2026-06-08 05:43:38.170907 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2022-2030 not_vulnerable 2026-06-08 05:42:50.106879 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2021-35029 not_vulnerable 2026-06-08 05:32:17.439732 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2020-9054 not_vulnerable 2026-06-08 05:27:20.394631 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2020-29583 not_vulnerable 2026-06-08 05:24:58.487230 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2020-25014 not_vulnerable 2026-06-08 05:22:35.825532 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data
CVE:CVE-2019-9955 not_vulnerable 2026-06-08 05:14:26.694651 db.gcve.eu details were skipped to keep the page responsive. Imported from gcve-enriched-dumps CVE data

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