CVE-2025-6599
Dec. 16, 2025, 9:19 p.m.
5.3
Medium
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Zyxel |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-400
Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| o | zyxel | lte3301-plus_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | lte3301-plus | - | / | / | / | / | / | / | / |
| o | zyxel | nr5103_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | nr5103 | - | / | / | / | / | / | / | / |
| o | zyxel | nr5103e_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | nr5103e | - | / | / | / | / | / | / | / |
| o | zyxel | nr5309_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | nr5309 | - | / | / | / | / | / | / | / |
| o | zyxel | nr7302_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | nr7302 | - | / | / | / | / | / | / | / |
| o | zyxel | nr7303_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | nr7303 | - | / | / | / | / | / | / | / |
| o | zyxel | nebula_fwa505_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | nebula_fwa505 | - | / | / | / | / | / | / | / |
| o | zyxel | nebula_fwa510_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | nebula_fwa510 | - | / | / | / | / | / | / | / |
| o | zyxel | nebula_fwa515_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | nebula_fwa515 | - | / | / | / | / | / | / | / |
| o | zyxel | nebula_fwa710_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | nebula_fwa710 | - | / | / | / | / | / | / | / |
| o | zyxel | dm4200-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | dm4200-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | dx3300-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | dx3300-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | dx3300-t1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | dx3300-t1 | - | / | / | / | / | / | / | / |
| o | zyxel | dx3301-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | dx3301-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | dx4510-b1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | dx4510-b1 | - | / | / | / | / | / | / | / |
| o | zyxel | dx5401-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | dx5401-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | dx5401-b1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | dx5401-b1 | - | / | / | / | / | / | / | / |
| o | zyxel | ee3301-00_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ee3301-00 | - | / | / | / | / | / | / | / |
| o | zyxel | ee5301-00_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ee5301-00 | - | / | / | / | / | / | / | / |
| o | zyxel | ee6510-10_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ee6510-10 | - | / | / | / | / | / | / | / |
| o | zyxel | ex3300-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex3300-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex3300-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex3300-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex3300-t1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex3300-t1 | - | / | / | / | / | / | / | / |
| o | zyxel | ex3301-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex3301-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex3500-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex3500-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex3501-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex3501-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex3600-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex3600-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex5401-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex5401-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex5401-b1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex5401-b1 | - | / | / | / | / | / | / | / |
| o | zyxel | ex5501-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex5501-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex5510-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex5510-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex5512-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex5512-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex5601-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex5601-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex5601-t1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex5601-t1 | - | / | / | / | / | / | / | / |
| o | zyxel | ex7501-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex7501-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | ex7710-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ex7710-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | emg3525-t50b_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | emg3525-t50b | - | / | / | / | / | / | / | / |
| o | zyxel | emg5523-t50b_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | emg5523-t50b | - | / | / | / | / | / | / | / |
| o | zyxel | emg5723-t50k_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | emg5723-t50k | - | / | / | / | / | / | / | / |
| o | zyxel | emg6726-b10a_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | emg6726-b10a | - | / | / | / | / | / | / | / |
| o | zyxel | gm4100-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | gm4100-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | vmg3625-t50b_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | vmg3625-t50b | - | / | / | / | / | / | / | / |
| o | zyxel | vmg3927-b50b_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | vmg3927-b50b | - | / | / | / | / | / | / | / |
| o | zyxel | vmg3927-t50k_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | vmg3927-t50k | - | / | / | / | / | / | / | / |
| o | zyxel | vmg4005-b50a_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | vmg4005-b50a | - | / | / | / | / | / | / | / |
| o | zyxel | vmg4005-b60a_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | vmg4005-b60a | - | / | / | / | / | / | / | / |
| o | zyxel | vmg4005-b50b_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | vmg4005-b50b | - | / | / | / | / | / | / | / |
| o | zyxel | vmg4927-b50a_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | vmg4927-b50a | - | / | / | / | / | / | / | / |
| o | zyxel | vmg8623-t50b_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | vmg8623-t50b | - | / | / | / | / | / | / | / |
| o | zyxel | vmg8825-t50k_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | vmg8825-t50k | - | / | / | / | / | / | / | / |
| o | zyxel | ax7501-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ax7501-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | ax7501-b1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | ax7501-b1 | - | / | / | / | / | / | / | / |
| o | zyxel | pe3301-00_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | pe3301-00 | - | / | / | / | / | / | / | / |
| o | zyxel | pe5301-01_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | pe5301-01 | - | / | / | / | / | / | / | / |
| o | zyxel | pm3100-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | pm3100-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | pm5100-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | pm5100-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | pm7500-00_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | pm7500-00 | - | / | / | / | / | / | / | / |
| o | zyxel | pm7300-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | pm7300-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | px3321-t1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | px3321-t1 | - | / | / | / | / | / | / | / |
| o | zyxel | px3321-t1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | px3321-t1 | - | / | / | / | / | / | / | / |
| o | zyxel | px5301-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | px5301-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | scr_50axe_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | scr_50axe | - | / | / | / | / | / | / | / |
| o | zyxel | we3300-00_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | we3300-00 | - | / | / | / | / | / | / | / |
| o | zyxel | wx3100-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | wx3100-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | wx3401-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | wx3401-b0 | - | / | / | / | / | / | / | / |
| o | zyxel | wx3401-b1_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | wx3401-b1 | - | / | / | / | / | / | / | / |
| o | zyxel | wx5600-t0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | wx5600-t0 | - | / | / | / | / | / | / | / |
| o | zyxel | wx5610-b0_firmware | / | / | / | / | / | / | / | / |
| h | zyxel | wx5610-b0 | - | / | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: NETWORK
- Attack Complexity: LOW
- Privileges Required: NONE
- Scope: UNCHANGED
- Confidentiality Impact: NONE
- Integrity Impact: NONE
- Availability Impact: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Timeline
Published: Nov. 18, 2025, 2:15 a.m.
Last Modified: Dec. 16, 2025, 9:19 p.m.
Last Modified: Dec. 16, 2025, 9:19 p.m.
Status : Analyzed
CVE has had analysis completed and all data associations made.
More infoSource
security@zyxel.com.tw
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.