CVE-2023-28771: Zyxel Multiple Firewalls OS Command Injection Vulnerability
Zyxel ATP, USG FLEX, VPN, and ZyWALL/USG firewalls allow for improper error message handling which could allow an unauthenticated attacker to execute OS commands remotely by sending crafted packets to an affected device. Required action: Apply updates per vendor instructions.
· high severity · unattributed attribution
Evidence and provenance
- Original source
- CISA KEV report ↗
- Published
- 2023-05-31T00:00:00Z
- Confidence basis
- No actor match
- Record ID
8c6e3973e50e24e7b2c5
Vulnerabilities
CVE-2023-28771
Use and citation
Verify the original report before making operational decisions. Cite this permanent page together with the original source, publication date, confidence level, and review status.