CVE detail
CVE-2023-28771 — Zyxel Multiple Firewalls OS Command Injection Vulnerability
Published 2023-05-31 · Modified 2023-05-31 · Source kev
HIGH
severity
CVSS-derived band
0.9928
EPSS probability
exploitation probability, 30d
100.0%
EPSS percentile
percentile vs all CVEs
LISTED
CISA KEV
due 2023-06-21
⚠ Actively exploited in the wild — CISA KEV listed 2023-05-31, federal remediation due 2023-06-21.
Description
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.
Remediation
No vendor-published fix data in our corpus for this CVE. Check the references below or the vendor's PSIRT / security advisories page.
References