{"cve":"CVE-2022-43393","nvd":{"published":"2023-01-11T02:15:11.403","modified":"2026-06-17T05:06:25.660","status":"Modified","description":"An improper check for unusual or exceptional conditions in the HTTP request processing function of Zyxel GS1920-24v2 firmware prior to V4.70(ABMH.8)C0, which could allow an unauthenticated attacker to corrupt the contents of the memory and result in a denial-of-service (DoS) condition on a vulnerable device.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","score":8.2},"cwes":["CWE-754"],"references":["https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-dos-vulnerability-of-switches","https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-dos-vulnerability-of-switches"],"products":["zyxel:gs1350-12hp_firmware","zyxel:gs1350-18hp_firmware","zyxel:gs1350-26hp_firmware","zyxel:gs1350-6hp_firmware","zyxel:gs1915-24e_firmware","zyxel:gs1915-24ep_firmware","zyxel:gs1915-8_firmware","zyxel:gs1915-8ep_firmware","zyxel:gs1920-24hpv2_firmware","zyxel:gs1920-24v2_firmware","zyxel:gs1920-48hpv2_firmware","zyxel:gs1920-48v2_firmware","zyxel:gs2220-10_firmware","zyxel:gs2220-10hp_firmware","zyxel:gs2220-28_firmware","zyxel:gs2220-28hp_firmware","zyxel:gs2220-50_firmware","zyxel:gs2220-50hp_firmware","zyxel:mgs3500-24s_firmware","zyxel:mgs3520-28_firmware","zyxel:mgs3520-28f_firmware","zyxel:mgs3530-28_firmware","zyxel:xgs1930-28_firmware","zyxel:xgs1930-28hp_firmware","zyxel:xgs1930-52_firmware","zyxel:xgs1930-52hp_firmware","zyxel:xgs2210-28_firmware","zyxel:xgs2210-28hp_firmware","zyxel:xgs2210-52_firmware","zyxel:xgs2210-52hp_firmware","zyxel:xgs2220-30_firmware","zyxel:xgs2220-30f_firmware","zyxel:xgs2220-30hp_firmware","zyxel:xgs2220-54_firmware","zyxel:xgs2220-54fp_firmware","zyxel:xgs2220-54hp_firmware","zyxel:xgs4600-32_firmware","zyxel:xgs4600-32f_firmware","zyxel:xgs4600-52f_firmware","zyxel:xmg1930-30_firmware","zyxel:xmg1930-30hp_firmware","zyxel:xs1930-10_firmware","zyxel:xs1930-12f_firmware","zyxel:xs1930-12hp_firmware","zyxel:xs3800-28_firmware"],"source":"nvd","synced_at":"2026-10-19T21:37:34.931465858+00:00"},"epss":{"cve":"CVE-2022-43393","score":0.00577,"percentile":0.47587,"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."]}