Lucene search

[email protected]CVE-2023-33009

HistoryMay 24, 2023 - 1:15 p.m.

CVE-2023-33009

2023-05-2413:15:09

CWE-120

[email protected]

web.nvd.nist.gov

325

In Wild

cve

2023

33009

buffer overflow

zyxel

atp

usg flex

firmware

vulnerability

denial of service

remote code execution

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.9 High

AI Score

Confidence

High

0.026 Low

EPSS

Percentile

90.3%

JSON

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.

Affected configurations

NVD

Node

zyxelatp100Match-

AND

zyxelatp100_firmwareRange4.60–5.36

zyxelatp100_firmwareMatch5.36-

zyxelatp100_firmwareMatch5.36patch1

Node

zyxelatp200Match-

AND

zyxelatp200_firmwareRange4.60–5.36

zyxelatp200_firmwareMatch5.36-

zyxelatp200_firmwareMatch5.36patch1

Node

zyxelatp500Match-

AND

zyxelatp500_firmwareRange4.60–5.36

zyxelatp500_firmwareMatch5.36-

zyxelatp500_firmwareMatch5.36patch1

Node

zyxelatp100wMatch-

AND

zyxelatp100w_firmwareRange4.60–5.36

zyxelatp100w_firmwareMatch5.36-

zyxelatp100w_firmwareMatch5.36patch1

Node

zyxelatp700Match-

AND

zyxelatp700_firmwareRange4.60–5.36

zyxelatp700_firmwareMatch5.36-

zyxelatp700_firmwareMatch5.36patch1

Node

zyxelatp800Match-

AND

zyxelatp800_firmwareRange4.60–5.36

zyxelatp800_firmwareMatch5.36-

zyxelatp800_firmwareMatch5.36patch1

Node

zyxelusg_flex_100Match-

AND

zyxelusg_flex_100_firmwareRange4.60–5.36

zyxelusg_flex_100_firmwareMatch5.36-

zyxelusg_flex_100_firmwareMatch5.36patch1

Node

zyxelusg_flex_50Match-

AND

zyxelusg_flex_50_firmwareRange4.60–5.36

zyxelusg_flex_50_firmwareMatch5.36-

zyxelusg_flex_50_firmwareMatch5.36patch1

Node

zyxelusg_flex_200_firmwareRange4.60–5.36

zyxelusg_flex_200_firmwareMatch5.36-

zyxelusg_flex_200_firmwareMatch5.36patch1

AND

zyxelusg_flex_200Match-

Node

zyxelusg_flex_500_firmwareRange4.60–5.36

zyxelusg_flex_500_firmwareMatch5.36-

zyxelusg_flex_500_firmwareMatch5.36patch1

AND

zyxelusg_flex_500Match-

Node

zyxelusg_flex_700_firmwareRange4.60–5.36

zyxelusg_flex_700_firmwareMatch5.36-

zyxelusg_flex_700_firmwareMatch5.36patch1

AND

zyxelusg_flex_700Match-

Node

zyxelusg_flex_100_firmwareRange4.60–5.36

zyxelusg_flex_100w_firmwareMatch5.36-

zyxelusg_flex_100w_firmwareMatch5.36patch1

AND

zyxelusg_flex_100wMatch-

Node

zyxelusg_flex_50w_firmwareRange4.60–5.36

zyxelusg_flex_50w_firmwareMatch5.36-

zyxelusg_flex_50w_firmwareMatch5.36patch1

AND

zyxelusg_flex_50wMatch-

Node

zyxelusg_20w-vpn_firmwareRange4.60–5.36

zyxelusg_20w-vpn_firmwareMatch5.36-

zyxelusg_20w-vpn_firmwareMatch5.36patch1

AND

zyxelusg_20w-vpnMatch-

Node

zyxelvpn100_firmwareRange4.60–5.36

zyxelvpn100_firmwareMatch5.36-

zyxelvpn100_firmwareMatch5.36patch1

AND

zyxelvpn100Match-

Node

zyxelvpn50_firmwareRange4.60–5.36

zyxelvpn50_firmwareMatch5.36-

zyxelvpn50_firmwareMatch5.36patch1

AND

zyxelvpn50Match-

Node

zyxelvpn300_firmwareRange4.60–5.36

zyxelvpn300_firmwareMatch5.36-

zyxelvpn300_firmwareMatch5.36patch1

AND

zyxelvpn300Match-

Node

zyxelvpn1000_firmwareRange4.60–5.36

zyxelvpn1000_firmwareMatch5.36-

zyxelvpn1000_firmwareMatch5.36patch1

AND

zyxelvpn1000Match-

Node

zyxelusg20-vpn_firmwareRange4.60–5.36

zyxelusg20-vpn_firmwareMatch5.36-

zyxelusg20-vpn_firmwareMatch5.36patch1

AND

zyxelusg20-vpnMatch-

Node

zyxelusg_40_firmwareRange4.60–4.73

zyxelusg_40_firmwareMatch4.73-

zyxelusg_40_firmwareMatch4.73patch1

AND

zyxelusg_40Match-

Node

zyxelusg_40w_firmwareRange4.60–4.73

zyxelusg_40w_firmwareMatch4.73-

zyxelusg_40w_firmwareMatch4.73patch1

AND

zyxelusg_40wMatch-

Node

zyxelusg_60w_firmwareRange4.60–4.73

zyxelusg_60w_firmwareMatch4.73-

zyxelusg_60w_firmwareMatch4.73patch1

AND

zyxelusg_60wMatch-

Node

zyxelusg_60_firmwareRange4.60–4.73

zyxelusg_60_firmwareMatch4.73-

zyxelusg_60_firmwareMatch4.73patch1

AND

zyxelusg_60Match-

CPENameOperatorVersion
zyxel:atp100_firmwarezyxel atp100 firmwarelt5.36

CPE	Name	Operator	Version
zyxel:atp100_firmware	zyxel atp100 firmware	lt	5.36

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "ATP series firmware",
    "vendor": "Zyxel",
    "versions": [
      {
        "status": "affected",
        "version": "4.60 through 5.36 Patch 1"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "USG FLEX series firmware",
    "vendor": "Zyxel",
    "versions": [
      {
        "status": "affected",
        "version": "4.60 through 5.36 Patch 1"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "USG FLEX 50(W) firmware",
    "vendor": "Zyxel",
    "versions": [
      {
        "status": "affected",
        "version": "4.60 through 5.36 Patch 1"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "USG20(W)-VPN firmware",
    "vendor": "Zyxel",
    "versions": [
      {
        "status": "affected",
        "version": "4.60 through 5.36 Patch 1"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "VPN series firmware",
    "vendor": "Zyxel",
    "versions": [
      {
        "status": "affected",
        "version": "4.60 through 5.36 Patch 1"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "ZyWALL/USG series firmware",
    "vendor": "Zyxel",
    "versions": [
      {
        "status": "affected",
        "version": "4.60 through 4.73 Patch 1"
      }
    ]
  }
]