High severity8.1NVD Advisory· Published Apr 24, 2023· Updated Jun 17, 2026
CVE-2023-22916
CVE-2023-22916
Description
The configuration parser of Zyxel ATP series firmware versions 5.10 through 5.35, USG FLEX series firmware versions 5.00 through 5.35, USG FLEX 50(W) firmware versions 5.10 through 5.35, USG20(W)-VPN firmware versions 5.10 through 5.35, and VPN series firmware versions 5.00 through 5.35, which fails to properly sanitize user input. A remote unauthenticated attacker could leverage the vulnerability to modify device configuration data, resulting in DoS conditions on an affected device if the attacker could trick an authorized administrator to switch the management mode to the cloud mode.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
27- cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:*Range: >=5.00,<=5.35
- cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:*Range: >=5.00,<=5.35
- cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:*Range: >=5.00,<=5.35
- cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:*Range: >=5.00,<=5.35
- cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:*Range: >=5.10,<=5.35
- cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:*Range: >=5.00,<=5.35
5.00 - 5.35+ 1 more
- (no CPE)range: 5.00 - 5.35
- (no CPE)range: 5.00 through 5.35
5.10 - 5.35+ 1 more
- (no CPE)range: 5.10 - 5.35
- (no CPE)range: 5.10 through 5.35
5.00 - 5.35+ 1 more
- (no CPE)range: 5.00 - 5.35
- (no CPE)range: 5.00 through 5.35
- Range: 5.10 - 5.35
- Range: 5.10 through 5.35
- Range: 5.10 through 5.35
Patches
Vulnerability mechanics
References
1News mentions
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