{"cve":"CVE-2025-6599","nvd":{"published":"2025-11-18T02:15:45.210","modified":"2026-10-18T20:10:00.110","status":"Analyzed","description":"An uncontrolled resource consumption vulnerability in the web server of Zyxel DX3301-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an attacker to perform Slowloris‑style denial‑of‑service (DoS) attacks. Such attacks may temporarily block legitimate HTTP requests and partially disrupt access to the web management interface, while other networking services remain unaffected.","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:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-uncontrolled-resource-consumption-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-11-18-2025"],"products":["zyxel:ax7501-b0_firmware","zyxel:ax7501-b1_firmware","zyxel:dm4200-b0_firmware","zyxel:dx3300-t0_firmware","zyxel:dx3300-t1_firmware","zyxel:dx3301-t0_firmware","zyxel:dx4510-b1_firmware","zyxel:dx5401-b0_firmware","zyxel:dx5401-b1_firmware","zyxel:ee3301-00_firmware","zyxel:ee5301-00_firmware","zyxel:ee6510-10_firmware","zyxel:emg3525-t50b_firmware","zyxel:emg5523-t50b_firmware","zyxel:emg5723-t50k_firmware","zyxel:emg6726-b10a_firmware","zyxel:ex3300-t0_firmware","zyxel:ex3300-t1_firmware","zyxel:ex3301-t0_firmware","zyxel:ex3500-t0_firmware","zyxel:ex3501-t0_firmware","zyxel:ex3600-t0_firmware","zyxel:ex5401-b0_firmware","zyxel:ex5401-b1_firmware","zyxel:ex5501-b0_firmware","zyxel:ex5510-b0_firmware","zyxel:ex5512-t0_firmware","zyxel:ex5601-t0_firmware","zyxel:ex5601-t1_firmware","zyxel:ex7501-b0_firmware","zyxel:ex7710-b0_firmware","zyxel:gm4100-b0_firmware","zyxel:lte3301-plus_firmware","zyxel:nebula_fwa505_firmware","zyxel:nebula_fwa510_firmware","zyxel:nebula_fwa515_firmware","zyxel:nebula_fwa710_firmware","zyxel:nr5103_firmware","zyxel:nr5103e_firmware","zyxel:nr5309_firmware","zyxel:nr7302_firmware","zyxel:nr7303_firmware","zyxel:pe3301-00_firmware","zyxel:pe5301-01_firmware","zyxel:pm3100-t0_firmware","zyxel:pm5100-t0_firmware","zyxel:pm7300-t0_firmware","zyxel:pm7500-00_firmware","zyxel:px3321-t1_firmware","zyxel:px5301-t0_firmware"],"source":"nvd","synced_at":"2026-10-19T22:16:02.354564667+00:00"},"epss":{"cve":"CVE-2025-6599","score":0.00335,"percentile":0.26597,"date":"2026-10-25"},"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."]}