Vulnerability · Published Feb 22, 2022 · Assigned by Zyxel
CVE-2021-4030
High 8.0
In plain English
A high-severity cross-site request forgery in ARMOR Z1 (NBG6816) firmware from Zyxel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)0.4%top 61.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A cross-site request forgery vulnerability in the HTTP daemon of the Zyxel ARMOR Z1/Z2 firmware could allow an attacker to execute arbitrary commands if they coerce or trick a local user to visit a compromised website with malicious scripts.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | ARMOR Z2 (NBG6817) firmware | 1.00(ABCS.10)C0 |
| Zyxel | ARMOR Z1 (NBG6816) firmware | 1.00(AAWB.10)C0 |
Weakness: CWE-352 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H