5.3

CVE-2023-6397












A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service (DoS) conditions by downloading a crafted RAR compressed file onto a LAN-side host if the firewall has the “Anti-Malware” feature enabled.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Zyxel ≫ Atp100 Firmware Version >= 4.32 < 5.37
   Zyxel ≫ Atp100 Version -
Zyxel ≫ Atp100 Firmware Version 5.37 Update -
   Zyxel ≫ Atp100 Version -
Zyxel ≫ Atp100 Firmware Version 5.37 Update patch1
   Zyxel ≫ Atp100 Version -
Zyxel ≫ Atp100w Firmware Version >= 4.32 < 5.37
   Zyxel ≫ Atp100w Version -
Zyxel ≫ Atp100w Firmware Version 5.37 Update -
   Zyxel ≫ Atp100w Version -
Zyxel ≫ Atp100w Firmware Version 5.37 Update patch1
   Zyxel ≫ Atp100w Version -
Zyxel ≫ Atp200 Firmware Version >= 4.32 < 5.37
   Zyxel ≫ Atp200 Version -
Zyxel ≫ Atp200 Firmware Version 5.37 Update -
   Zyxel ≫ Atp200 Version -
Zyxel ≫ Atp200 Firmware Version 5.37 Update patch1
   Zyxel ≫ Atp200 Version -
Zyxel ≫ Atp500 Firmware Version >= 4.32 < 5.37
   Zyxel ≫ Atp500 Version -
Zyxel ≫ Atp500 Firmware Version 5.37 Update -
   Zyxel ≫ Atp500 Version -
Zyxel ≫ Atp500 Firmware Version 5.37 Update patch1
   Zyxel ≫ Atp500 Version -
Zyxel ≫ Atp700 Firmware Version >= 4.32 < 5.37
   Zyxel ≫ Atp700 Version -
Zyxel ≫ Atp700 Firmware Version 5.37 Update -
   Zyxel ≫ Atp700 Version -
Zyxel ≫ Atp700 Firmware Version 5.37 Update patch1
   Zyxel ≫ Atp700 Version -
Zyxel ≫ Atp800 Firmware Version >= 4.32 < 5.37
   Zyxel ≫ Atp800 Version -
Zyxel ≫ Atp800 Firmware Version 5.37 Update -
   Zyxel ≫ Atp800 Version -
Zyxel ≫ Atp800 Firmware Version 5.37 Update patch1
   Zyxel ≫ Atp800 Version -
Zyxel ≫ Usg Flex 100 Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 100 Version -
Zyxel ≫ Usg Flex 100 Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 100 Version -
Zyxel ≫ Usg Flex 100 Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 100 Version -
Zyxel ≫ Usg Flex 100ax Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 100ax Version -
Zyxel ≫ Usg Flex 100ax Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 100ax Version -
Zyxel ≫ Usg Flex 100ax Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 100ax Version -
Zyxel ≫ Usg Flex 100h Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 100h Version -
Zyxel ≫ Usg Flex 100h Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 100h Version -
Zyxel ≫ Usg Flex 100h Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 100h Version -
Zyxel ≫ Usg Flex 100w Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 100w Version -
Zyxel ≫ Usg Flex 100w Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 100w Version -
Zyxel ≫ Usg Flex 100w Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 100w Version -
Zyxel ≫ Usg Flex 200 Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 200 Version -
Zyxel ≫ Usg Flex 200 Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 200 Version -
Zyxel ≫ Usg Flex 200 Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 200 Version -
Zyxel ≫ Usg Flex 200h Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 200h Version -
Zyxel ≫ Usg Flex 200h Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 200h Version -
Zyxel ≫ Usg Flex 200h Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 200h Version -
Zyxel ≫ Usg Flex 200hp Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 200hp Version -
Zyxel ≫ Usg Flex 200hp Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 200hp Version -
Zyxel ≫ Usg Flex 200hp Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 200hp Version -
Zyxel ≫ Usg Flex 50 Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 50 Version -
Zyxel ≫ Usg Flex 50 Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 50 Version -
Zyxel ≫ Usg Flex 50 Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 50 Version -
Zyxel ≫ Usg Flex 500 Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 500 Version -
Zyxel ≫ Usg Flex 500 Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 500 Version -
Zyxel ≫ Usg Flex 500 Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 500 Version -
Zyxel ≫ Usg Flex 500h Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 500h Version -
Zyxel ≫ Usg Flex 500h Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 500h Version -
Zyxel ≫ Usg Flex 500h Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 500h Version -
Zyxel ≫ Usg Flex 50w Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 50w Version -
Zyxel ≫ Usg Flex 50w Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 50w Version -
Zyxel ≫ Usg Flex 50w Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 50w Version -
Zyxel ≫ Usg Flex 700 Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 700 Version -
Zyxel ≫ Usg Flex 700 Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 700 Version -
Zyxel ≫ Usg Flex 700 Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 700 Version -
Zyxel ≫ Usg Flex 700h Firmware Version >= 4.50 < 5.37
   Zyxel ≫ Usg Flex 700h Version -
Zyxel ≫ Usg Flex 700h Firmware Version 5.37 Update -
   Zyxel ≫ Usg Flex 700h Version -
Zyxel ≫ Usg Flex 700h Firmware Version 5.37 Update patch1
   Zyxel ≫ Usg Flex 700h Version -
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.215
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.3 1.6 3.6
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
security@zyxel.com.tw 6.5 2.8 3.6
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps-02-20-2024
Vendor Advisory