High severity8.1NVD Advisory· Published Apr 24, 2023· Updated Jun 17, 2026
CVE-2023-22913
CVE-2023-22913
Description
A post-authentication command injection vulnerability in the “account_operator.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker to modify device configuration data, resulting in denial-of-service (DoS) conditions on an affected device.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
15- cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.35
- cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.35
- cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.35
- cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.35
- cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.35
- cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.35
4.30 - 5.35+ 1 more
- (no CPE)range: 4.30 - 5.35
- (no CPE)range: 4.30 through 5.35
4.50 - 5.35+ 1 more
- (no CPE)range: 4.50 - 5.35
- (no CPE)range: 4.50 through 5.35
Patches
Vulnerability mechanics
References
1News mentions
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