CVE-2023-22916

Summary

The configuration parser of Zyxel ATP series firmware versions 5.10 through 5.35, USG FLEX series firmware versions 5.00 through 5.35, USG FLEX 50(W) firmware versions 5.10 through 5.35, USG20(W)-VPN firmware versions 5.10 through 5.35, and VPN series firmware versions 5.00 through 5.35, which fails to properly sanitize user input. A remote unauthenticated attacker could leverage the vulnerability to modify device configuration data, resulting in DoS conditions on an affected device if the attacker could trick an authorized administrator to switch the management mode to the cloud mode.

Affected Software

VendorProductVersion RangeStatus
ZyxelATP series firmware5.10 through 5.35affected
ZyxelUSG FLEX series firmware5.00 through 5.35affected
ZyxelUSG FLEX 50(W) firmware5.10 through 5.35affected
ZyxelUSG20(W)-VPN firmware5.10 through 5.35affected
ZyxelVPN series firmware5.00 through 5.35affected

Weaknesses

  • CWE-20: CWE-20: Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References