CVE-2023-33009

CRITICALCISA KEV

9.8

Description

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.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie5/24/2023

Derniere modification2/26/2026

Sourcekev

Observations honeypot0

CISA KEV

FournisseurZyxel

ProduitMultiple Firewalls

Nom vulnerabiliteZyxel Multiple Firewalls Buffer Overflow Vulnerability

Date ajout KEV2023-06-05

Date limite remediation2023-06-26

Utilise dans ransomwareUnknown

Produits affectes

zyxel:atp100zyxel:atp100_firmwarezyxel:atp100wzyxel:atp100w_firmwarezyxel:atp200zyxel:atp200_firmwarezyxel:atp500zyxel:atp500_firmwarezyxel:atp700zyxel:atp700_firmwarezyxel:atp800zyxel:atp800_firmwarezyxel:usg20-vpnzyxel:usg20-vpn_firmwarezyxel:usg_20w-vpnzyxel:usg_20w-vpn_firmwarezyxel:usg_40zyxel:usg_40_firmwarezyxel:usg_40wzyxel:usg_40w_firmwarezyxel:usg_60zyxel:usg_60_firmwarezyxel:usg_60wzyxel:usg_60w_firmwarezyxel:usg_flex_100zyxel:usg_flex_100_firmwarezyxel:usg_flex_100wzyxel:usg_flex_100w_firmwarezyxel:usg_flex_200zyxel:usg_flex_200_firmwarezyxel:usg_flex_50zyxel:usg_flex_500zyxel:usg_flex_500_firmwarezyxel:usg_flex_50_firmwarezyxel:usg_flex_50wzyxel:usg_flex_50w_firmwarezyxel:usg_flex_700zyxel:usg_flex_700_firmwarezyxel:vpn100zyxel:vpn1000zyxel:vpn1000_firmwarezyxel:vpn100_firmwarezyxel:vpn300zyxel:vpn300_firmwarezyxel:vpn50zyxel:vpn50_firmware

Faiblesses (CWE)

CWE-120CWE-120

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls(security@zyxel.com.tw)

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-33009(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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