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.
Metrics
Affected Vendors & Products
History
Tue, 16 Dec 2025 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zyxel ax7501-b0
Zyxel ax7501-b0 Firmware Zyxel ax7501-b1 Zyxel ax7501-b1 Firmware Zyxel dm4200-b0 Zyxel dm4200-b0 Firmware Zyxel dx3300-t0 Zyxel dx3300-t0 Firmware Zyxel dx3300-t1 Zyxel dx3300-t1 Firmware Zyxel dx3301-t0 Zyxel dx4510-b1 Zyxel dx4510-b1 Firmware Zyxel dx5401-b0 Zyxel dx5401-b0 Firmware Zyxel dx5401-b1 Zyxel dx5401-b1 Firmware Zyxel ee3301-00 Zyxel ee3301-00 Firmware Zyxel ee5301-00 Zyxel ee5301-00 Firmware Zyxel ee6510-10 Zyxel ee6510-10 Firmware Zyxel emg3525-t50b Zyxel emg3525-t50b Firmware Zyxel emg5523-t50b Zyxel emg5523-t50b Firmware Zyxel emg5723-t50k Zyxel emg5723-t50k Firmware Zyxel emg6726-b10a Zyxel emg6726-b10a Firmware Zyxel ex3300-t0 Zyxel ex3300-t0 Firmware Zyxel ex3300-t1 Zyxel ex3300-t1 Firmware Zyxel ex3301-t0 Zyxel ex3301-t0 Firmware Zyxel ex3500-t0 Zyxel ex3500-t0 Firmware Zyxel ex3501-t0 Zyxel ex3501-t0 Firmware Zyxel ex3600-t0 Zyxel ex3600-t0 Firmware Zyxel ex5401-b0 Zyxel ex5401-b0 Firmware Zyxel ex5401-b1 Zyxel ex5401-b1 Firmware Zyxel ex5501-b0 Zyxel ex5501-b0 Firmware Zyxel ex5510-b0 Zyxel ex5510-b0 Firmware Zyxel ex5512-t0 Zyxel ex5512-t0 Firmware Zyxel ex5601-t0 Zyxel ex5601-t0 Firmware Zyxel ex5601-t1 Zyxel ex5601-t1 Firmware Zyxel ex7501-b0 Zyxel ex7501-b0 Firmware Zyxel ex7710-b0 Zyxel ex7710-b0 Firmware Zyxel gm4100-b0 Zyxel gm4100-b0 Firmware Zyxel lte3301-plus Zyxel lte3301-plus Firmware Zyxel nebula Fwa505 Zyxel nebula Fwa505 Firmware Zyxel nebula Fwa510 Zyxel nebula Fwa510 Firmware Zyxel nebula Fwa515 Zyxel nebula Fwa515 Firmware Zyxel nebula Fwa710 Zyxel nebula Fwa710 Firmware Zyxel nr5103 Zyxel nr5103 Firmware Zyxel nr5103e Zyxel nr5103e Firmware Zyxel nr5309 Zyxel nr5309 Firmware Zyxel nr7302 Zyxel nr7302 Firmware Zyxel nr7303 Zyxel nr7303 Firmware Zyxel pe3301-00 Zyxel pe3301-00 Firmware Zyxel pe5301-01 Zyxel pe5301-01 Firmware Zyxel pm3100-t0 Zyxel pm3100-t0 Firmware Zyxel pm5100-t0 Zyxel pm5100-t0 Firmware Zyxel pm7300-t0 Zyxel pm7300-t0 Firmware Zyxel pm7500-00 Zyxel pm7500-00 Firmware Zyxel px3321-t1 Zyxel px3321-t1 Firmware Zyxel px5301-t0 Zyxel px5301-t0 Firmware Zyxel scr 50axe Zyxel scr 50axe Firmware Zyxel vmg3625-t50b Zyxel vmg3625-t50b Firmware Zyxel vmg3927-b50b Zyxel vmg3927-b50b Firmware Zyxel vmg3927-t50k Zyxel vmg3927-t50k Firmware Zyxel vmg4005-b50a Zyxel vmg4005-b50a Firmware Zyxel vmg4005-b50b Zyxel vmg4005-b50b Firmware Zyxel vmg4005-b60a Zyxel vmg4005-b60a Firmware Zyxel vmg4927-b50a Zyxel vmg4927-b50a Firmware Zyxel vmg8623-t50b Zyxel vmg8623-t50b Firmware Zyxel vmg8825-t50k Zyxel vmg8825-t50k Firmware Zyxel we3300-00 Zyxel we3300-00 Firmware Zyxel wx3100-t0 Zyxel wx3100-t0 Firmware Zyxel wx3401-b0 Zyxel wx3401-b0 Firmware Zyxel wx3401-b1 Zyxel wx3401-b1 Firmware Zyxel wx5600-t0 Zyxel wx5600-t0 Firmware Zyxel wx5610-b0 Zyxel wx5610-b0 Firmware |
|
| CPEs | cpe:2.3:h:zyxel:ax7501-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ax7501-b1:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:dm4200-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:dx3300-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:dx3300-t1:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:dx3301-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:dx4510-b1:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:dx5401-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:dx5401-b1:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ee3301-00:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ee5301-00:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ee6510-10:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:emg3525-t50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:emg5523-t50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:emg5723-t50k:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:emg6726-b10a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex3300-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex3300-t1:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex3301-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex3500-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex3501-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex3600-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex5401-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex5401-b1:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex5501-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex5510-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex5512-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex5601-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex5601-t1:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex7501-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex7710-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gm4100-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:lte3301-plus:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:nebula_fwa505:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:nebula_fwa510:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:nebula_fwa515:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:nebula_fwa710:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:nr5103:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:nr5103e:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:nr5309:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:nr7302:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:nr7303:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:pe3301-00:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:pe5301-01:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:pm3100-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:pm5100-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:pm7300-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:pm7500-00:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:px3321-t1:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:px5301-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:scr_50axe:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3625-t50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3927-b50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3927-t50k:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg4005-b50a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg4005-b50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg4005-b60a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg4927-b50a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg8623-t50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg8825-t50k:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:we3300-00:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:wx3100-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:wx3401-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:wx3401-b1:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:wx5600-t0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:wx5610-b0:-:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ax7501-b1_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:dm4200-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:dx3300-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:dx3300-t1_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:dx3301-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:dx4510-b1_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:dx5401-b1_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ee3301-00_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ee5301-00_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ee6510-10_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:emg5723-t50k_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:emg6726-b10a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex3300-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex3300-t1_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex3301-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex3500-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex3501-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex3600-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex5401-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex5401-b1_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex5501-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex5510-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex5512-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex5601-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex5601-t1_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex7501-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex7710-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gm4100-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:lte3301-plus_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:nebula_fwa505_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:nebula_fwa510_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:nebula_fwa515_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:nebula_fwa710_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:nr5103_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:nr5103e_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:nr5309_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:nr7302_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:nr7303_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:pe3301-00_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:pe5301-01_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:pm3100-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:pm5100-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:pm7300-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:pm7500-00_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:px3321-t1_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:px5301-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:scr_50axe_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3927-b50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3927-t50k_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg4005-b50a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg4005-b50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg4005-b60a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg4927-b50a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg8825-t50k_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:we3300-00_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:wx3100-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:wx3401-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:wx3401-b1_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:wx5600-t0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:wx5610-b0_firmware:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Zyxel ax7501-b0
Zyxel ax7501-b0 Firmware Zyxel ax7501-b1 Zyxel ax7501-b1 Firmware Zyxel dm4200-b0 Zyxel dm4200-b0 Firmware Zyxel dx3300-t0 Zyxel dx3300-t0 Firmware Zyxel dx3300-t1 Zyxel dx3300-t1 Firmware Zyxel dx3301-t0 Zyxel dx4510-b1 Zyxel dx4510-b1 Firmware Zyxel dx5401-b0 Zyxel dx5401-b0 Firmware Zyxel dx5401-b1 Zyxel dx5401-b1 Firmware Zyxel ee3301-00 Zyxel ee3301-00 Firmware Zyxel ee5301-00 Zyxel ee5301-00 Firmware Zyxel ee6510-10 Zyxel ee6510-10 Firmware Zyxel emg3525-t50b Zyxel emg3525-t50b Firmware Zyxel emg5523-t50b Zyxel emg5523-t50b Firmware Zyxel emg5723-t50k Zyxel emg5723-t50k Firmware Zyxel emg6726-b10a Zyxel emg6726-b10a Firmware Zyxel ex3300-t0 Zyxel ex3300-t0 Firmware Zyxel ex3300-t1 Zyxel ex3300-t1 Firmware Zyxel ex3301-t0 Zyxel ex3301-t0 Firmware Zyxel ex3500-t0 Zyxel ex3500-t0 Firmware Zyxel ex3501-t0 Zyxel ex3501-t0 Firmware Zyxel ex3600-t0 Zyxel ex3600-t0 Firmware Zyxel ex5401-b0 Zyxel ex5401-b0 Firmware Zyxel ex5401-b1 Zyxel ex5401-b1 Firmware Zyxel ex5501-b0 Zyxel ex5501-b0 Firmware Zyxel ex5510-b0 Zyxel ex5510-b0 Firmware Zyxel ex5512-t0 Zyxel ex5512-t0 Firmware Zyxel ex5601-t0 Zyxel ex5601-t0 Firmware Zyxel ex5601-t1 Zyxel ex5601-t1 Firmware Zyxel ex7501-b0 Zyxel ex7501-b0 Firmware Zyxel ex7710-b0 Zyxel ex7710-b0 Firmware Zyxel gm4100-b0 Zyxel gm4100-b0 Firmware Zyxel lte3301-plus Zyxel lte3301-plus Firmware Zyxel nebula Fwa505 Zyxel nebula Fwa505 Firmware Zyxel nebula Fwa510 Zyxel nebula Fwa510 Firmware Zyxel nebula Fwa515 Zyxel nebula Fwa515 Firmware Zyxel nebula Fwa710 Zyxel nebula Fwa710 Firmware Zyxel nr5103 Zyxel nr5103 Firmware Zyxel nr5103e Zyxel nr5103e Firmware Zyxel nr5309 Zyxel nr5309 Firmware Zyxel nr7302 Zyxel nr7302 Firmware Zyxel nr7303 Zyxel nr7303 Firmware Zyxel pe3301-00 Zyxel pe3301-00 Firmware Zyxel pe5301-01 Zyxel pe5301-01 Firmware Zyxel pm3100-t0 Zyxel pm3100-t0 Firmware Zyxel pm5100-t0 Zyxel pm5100-t0 Firmware Zyxel pm7300-t0 Zyxel pm7300-t0 Firmware Zyxel pm7500-00 Zyxel pm7500-00 Firmware Zyxel px3321-t1 Zyxel px3321-t1 Firmware Zyxel px5301-t0 Zyxel px5301-t0 Firmware Zyxel scr 50axe Zyxel scr 50axe Firmware Zyxel vmg3625-t50b Zyxel vmg3625-t50b Firmware Zyxel vmg3927-b50b Zyxel vmg3927-b50b Firmware Zyxel vmg3927-t50k Zyxel vmg3927-t50k Firmware Zyxel vmg4005-b50a Zyxel vmg4005-b50a Firmware Zyxel vmg4005-b50b Zyxel vmg4005-b50b Firmware Zyxel vmg4005-b60a Zyxel vmg4005-b60a Firmware Zyxel vmg4927-b50a Zyxel vmg4927-b50a Firmware Zyxel vmg8623-t50b Zyxel vmg8623-t50b Firmware Zyxel vmg8825-t50k Zyxel vmg8825-t50k Firmware Zyxel we3300-00 Zyxel we3300-00 Firmware Zyxel wx3100-t0 Zyxel wx3100-t0 Firmware Zyxel wx3401-b0 Zyxel wx3401-b0 Firmware Zyxel wx3401-b1 Zyxel wx3401-b1 Firmware Zyxel wx5600-t0 Zyxel wx5600-t0 Firmware Zyxel wx5610-b0 Zyxel wx5610-b0 Firmware |
Tue, 18 Nov 2025 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 18 Nov 2025 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zyxel
Zyxel dx3301-t0 Firmware |
|
| Vendors & Products |
Zyxel
Zyxel dx3301-t0 Firmware |
Tue, 18 Nov 2025 01:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Weaknesses | CWE-400 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: Zyxel
Published:
Updated: 2025-11-18T16:35:31.932Z
Reserved: 2025-06-25T02:16:25.675Z
Link: CVE-2025-6599
Updated: 2025-11-18T14:25:07.990Z
Status : Analyzed
Published: 2025-11-18T02:15:45.210
Modified: 2025-12-16T21:19:59.153
Link: CVE-2025-6599
No data.
OpenCVE Enrichment
Updated: 2025-11-18T09:05:43Z