Overview
- Description
- Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG FLEX series firmware versions 4.60 through 5.35, and ATP series firmware versions 4.60 through 5.35, which could allow an unauthenticated attacker to execute some OS commands remotely by sending crafted packets to an affected device.
- Source
- security@zyxel.com.tw
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
Known exploits
Data from CISA
- Vulnerability name
- Zyxel Multiple Firewalls OS Command Injection Vulnerability
- Exploit added on
- May 31, 2023
- Exploit action due
- Jun 21, 2023
- Required action
- Apply updates per vendor instructions.
Social media
- Hype score
- Not currently trending
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