CVE-2023-6398

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.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.63%
Vendor Advisory zyxel.com
Affected: Zyxel ATP series firmware
Affected: Zyxel USG FLEX series firmware
Affected: Zyxel USG FLEX 50(W) series firmware
Affected: Zyxel USG20(W)-VPN series firmware
Affected: Zyxel NWA50AX firmware
Affected: Zyxel WAC500 firmware
Affected: Zyxel WAX300H firmware
Affected: Zyxel WBE660S firmware
Affected: Zyxel USG FLEX H series firmware
Published at:
Updated at:

References

Link Tags
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps-02-20-2024 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-6398?
CVE-2023-6398 has been scored as a high severity vulnerability.
How to fix CVE-2023-6398?
To fix CVE-2023-6398, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-6398 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-6398 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-6398?
CVE-2023-6398 affects Zyxel ATP series firmware, Zyxel USG FLEX series firmware, Zyxel USG FLEX 50(W) series firmware, Zyxel USG20(W)-VPN series firmware, Zyxel NWA50AX firmware, Zyxel WAC500 firmware, Zyxel WAX300H firmware, Zyxel WBE660S firmware, Zyxel USG FLEX H series firmware.
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