Vulnerability · Published Feb 20, 2024 · Assigned by Zyxel
CVE-2023-6398
High 7.2
In plain English
A high-severity OS command injection in ATP series 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 1.3% (higher than 71% of all known vulnerabilities).
Official description
A post-authentication command injection vulnerability in the file upload binary in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1, USG FLEX H series firmware versions from 1.10 through 1.10 Patch 1, NWA50AX firmware versions through 6.29(ABYW.3), WAC500 firmware versions through 6.65(ABVS.1), WAX300H firmware versions through 6.60(ACHF.1), and WBE660S firmware versions through 6.65(ACGG.1) could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device via FTP.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | ATP series firmware | version 4.32 through 5.37 Patch 1 |
| Zyxel | USG FLEX series firmware | version 4.50 through 5.37 Patch 1 |
| Zyxel | USG FLEX 50(W) series firmware | version 4.16 through 5.37 Patch 1 |
| Zyxel | USG20(W)-VPN series firmware | version 4.16 through 5.37 Patch 1 |
| Zyxel | NWA50AX firmware | < 6.29(ABYW.4) |
| Zyxel | WAC500 firmware | < 6.70(ABVS.1) |
| Zyxel | WAX300H firmware | < 6.70(ACHF.1) |
| Zyxel | WBE660S firmware | < 6.70(ACGG.1) |
| Zyxel | USG FLEX H series firmware | version 1.10 through 1.10 Patch 1 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H