Name: CVE-2023-28771: Improper Neutralization of Special Elements used in an OS Command
Creator: Rapid7
Published: 2023-04-25T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2023-28771, CWE-78, Exploited in the Wild, CISA KEV Exploit, Rapid7 Critical, Metasploit Module, CVSS 9.8, EPSS 0.94346, CISA KEV

Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG FLEX series firmware versions 4.60 through 5.35, and ATP series firmware versions 4.60 through 5.35, which could allow an unauthenticated attacker to execute some OS commands remotely by sending crafted packets to an affected device.

CVSS Details

CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Zyxel Firewall	—	Upgrade Zyxel Firewall to latest	May 19, 2023	Apr 25, 2023

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