Vulnerability Details CVE-2023-22915
A buffer overflow vulnerability in the “fbwifi_forward.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.30 through 5.35, USG20(W)-VPN firmware versions 4.30 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote unauthenticated attacker to cause DoS conditions by sending a crafted HTTP request if the Facebook WiFi function were enabled on an affected device.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 73.9%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2023-22915
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cpe:2.3:h:zyxel:usg_20w-vpn:-
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cpe:2.3:h:zyxel:usg_flex_100:-
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cpe:2.3:h:zyxel:usg_flex_100w:-
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cpe:2.3:h:zyxel:usg_flex_200:-
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cpe:2.3:h:zyxel:usg_flex_500:-
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cpe:2.3:h:zyxel:usg_flex_50:-
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cpe:2.3:h:zyxel:usg_flex_50w:-
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cpe:2.3:h:zyxel:usg_flex_700:-
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cpe:2.3:h:zyxel:vpn1000:-
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cpe:2.3:h:zyxel:vpn100:-
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cpe:2.3:h:zyxel:vpn300:-
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cpe:2.3:h:zyxel:vpn50:-
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cpe:2.3:o:zyxel:usg_20w-vpn_firmware:5.00
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cpe:2.3:o:zyxel:usg_flex_100_firmware:4.50
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cpe:2.3:o:zyxel:usg_flex_100_firmware:4.60
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cpe:2.3:o:zyxel:usg_flex_100_firmware:5.00
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cpe:2.3:o:zyxel:usg_flex_100_firmware:5.01
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cpe:2.3:o:zyxel:usg_flex_100_firmware:5.10
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cpe:2.3:o:zyxel:usg_flex_100_firmware:5.20
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cpe:2.3:o:zyxel:usg_flex_100_firmware:5.35
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cpe:2.3:o:zyxel:usg_flex_100w_firmware:4.50
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cpe:2.3:o:zyxel:usg_flex_100w_firmware:4.60
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cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.00
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cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.01
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cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.10
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cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.30
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cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.35
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cpe:2.3:o:zyxel:usg_flex_200_firmware:4.50
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cpe:2.3:o:zyxel:usg_flex_200_firmware:4.60
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cpe:2.3:o:zyxel:usg_flex_200_firmware:5.00
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cpe:2.3:o:zyxel:usg_flex_200_firmware:5.01
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cpe:2.3:o:zyxel:usg_flex_200_firmware:5.20
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cpe:2.3:o:zyxel:usg_flex_200_firmware:5.30
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cpe:2.3:o:zyxel:usg_flex_200_firmware:5.35
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cpe:2.3:o:zyxel:usg_flex_500_firmware:4.50
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cpe:2.3:o:zyxel:usg_flex_500_firmware:4.60
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cpe:2.3:o:zyxel:usg_flex_500_firmware:5.00
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cpe:2.3:o:zyxel:usg_flex_500_firmware:5.01
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cpe:2.3:o:zyxel:usg_flex_500_firmware:5.10
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cpe:2.3:o:zyxel:usg_flex_500_firmware:5.20
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cpe:2.3:o:zyxel:usg_flex_500_firmware:5.30
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cpe:2.3:o:zyxel:usg_flex_500_firmware:5.35
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cpe:2.3:o:zyxel:usg_flex_50_firmware:4.50
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cpe:2.3:o:zyxel:usg_flex_50_firmware:4.60
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cpe:2.3:o:zyxel:usg_flex_50_firmware:5.00
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cpe:2.3:o:zyxel:usg_flex_50_firmware:5.10
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cpe:2.3:o:zyxel:usg_flex_50_firmware:5.35
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cpe:2.3:o:zyxel:usg_flex_50w_firmware:4.50
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cpe:2.3:o:zyxel:usg_flex_50w_firmware:4.60
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cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.00
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cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.10
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cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.30
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cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.35
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cpe:2.3:o:zyxel:usg_flex_700_firmware:4.50
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cpe:2.3:o:zyxel:usg_flex_700_firmware:4.60
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cpe:2.3:o:zyxel:usg_flex_700_firmware:5.00
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cpe:2.3:o:zyxel:usg_flex_700_firmware:5.10
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cpe:2.3:o:zyxel:usg_flex_700_firmware:5.20
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cpe:2.3:o:zyxel:usg_flex_700_firmware:5.30
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cpe:2.3:o:zyxel:usg_flex_700_firmware:5.35
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cpe:2.3:o:zyxel:vpn1000_firmware:4.60
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cpe:2.3:o:zyxel:vpn1000_firmware:5.20
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cpe:2.3:o:zyxel:vpn1000_firmware:5.21
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cpe:2.3:o:zyxel:vpn1000_firmware:5.30
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cpe:2.3:o:zyxel:vpn100_firmware:4.60
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cpe:2.3:o:zyxel:vpn100_firmware:5.20
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cpe:2.3:o:zyxel:vpn100_firmware:5.21
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cpe:2.3:o:zyxel:vpn100_firmware:5.30
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cpe:2.3:o:zyxel:vpn300_firmware:4.60
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cpe:2.3:o:zyxel:vpn300_firmware:5.20
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cpe:2.3:o:zyxel:vpn300_firmware:5.21
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cpe:2.3:o:zyxel:vpn300_firmware:5.30
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cpe:2.3:o:zyxel:vpn50_firmware:4.60
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cpe:2.3:o:zyxel:vpn50_firmware:5.20
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cpe:2.3:o:zyxel:vpn50_firmware:5.21
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cpe:2.3:o:zyxel:vpn50_firmware:5.30