CVE-2023-27991

Summary

The post-authentication command injection vulnerability in the CLI command of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker to execute some OS commands remotely.

Affected Software

VendorProductVersion RangeStatus
ZyxelATP series firmware4.32 through 5.35affected
ZyxelUSG FLEX series firmware4.50 through 5.35affected
ZyxelUSG FLEX 50(W) firmware4.16 through 5.35affected
ZyxelUSG20(W)-VPN firmware4.16 through 5.35affected
ZyxelVPN series firmware4.30 through 5.35affected

Weaknesses

  • CWE-78: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References