{"cve":"CVE-2018-9129","nvd":{"published":"2018-08-15T18:29:01.230","modified":"2026-06-17T02:06:07.433","status":"Modified","description":"ZyXEL ZyWALL/USG series devices have a Bleichenbacher vulnerability in their Internet Key Exchange (IKE) handshake implementation used for IPsec based VPN connections.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","score":5.9},"cwes":[],"references":["ftp://ftp.zyxel.com/USG110/firmware/USG110_4.32%28AAPH.0%29C0_2.pdf","https://web-in-security.blogspot.com/2018/08/practical-bleichenbacher-attacks-on-ipsec-ike.html","https://www.zyxel.com/support/bleichenbacher_attack_vulnerability.shtml","ftp://ftp.zyxel.com/USG110/firmware/USG110_4.32%28AAPH.0%29C0_2.pdf","https://web-in-security.blogspot.com/2018/08/practical-bleichenbacher-attacks-on-ipsec-ike.html"],"products":["zyxel:usg_1100_firmware","zyxel:usg_110_firmware","zyxel:usg_1900_firmware","zyxel:usg_20w-vpn_firmware","zyxel:usg_20w_firmware","zyxel:usg_2200-vpn_firmware","zyxel:usg_310_firmware","zyxel:usg_40_firmware","zyxel:usg_40w_firmware","zyxel:usg_60_firmware","zyxel:usg_60w_firmware","zyxel:zywall_1100_firmware","zyxel:zywall_110_firmware","zyxel:zywall_310_firmware","zyxel:zywall_vpn_100_firmware","zyxel:zywall_vpn_300_firmware","zyxel:zywall_vpn_50_firmware"],"source":"nvd","synced_at":"2026-10-19T20:52:03.425131697+00:00"},"epss":{"cve":"CVE-2018-9129","score":0.00965,"percentile":0.61715,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}