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CVE-2023-6399

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

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Zyxel ATP series firmware

    version 4.32 through 5.37 Patch 1

  • Zyxel USG FLEX series firmware

    version 4.50 through 5.37 Patch 1

  • Zyxel USG FLEX 50(W) series firmware

    version 4.16 through 5.37 Patch 1

  • Zyxel USG20(W)-VPN series firmware

    version 4.16 through 5.37 Patch 1

  • Zyxel USG FLEX H series firmware

    version 1.10 through 1.10 Patch 1

References 1

zyxel.com