CVE-2021-35029
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An authentication bypasss vulnerability in the web-based management interface of Zyxel USG/Zywall series firmware versions 4.35 through 4.64 and USG Flex, ATP, and VPN series firmware versions 4.35 through 5.01, which could allow a remote attacker to execute arbitrary commands on an affected device.
Una vulnerabilidad de omisión de la autenticación en la interfaz de administración basada en web de Zyxel USG/Zywall series versiones de firmware 4.35 hasta 4.64 y USG Flex, ATP, y VPN versiones de firmware 4.35 hasta 5.01, que podría permitir a un atacante remoto ejecutar comandos arbitrarios en un dispositivo afectado
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-06-17 CVE Reserved
- 2021-07-02 CVE Published
- 2024-03-17 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-287: Improper Authentication
CAPEC
References (1)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Zyxel Search vendor "Zyxel" | Usg1900 Firmware Search vendor "Zyxel" for product "Usg1900 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg1900 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg1900 Search vendor "Zyxel" for product "Usg1900" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg1100 Firmware Search vendor "Zyxel" for product "Usg1100 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg1100 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg1100 Search vendor "Zyxel" for product "Usg1100" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg310 Firmware Search vendor "Zyxel" for product "Usg310 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg310 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg310 Search vendor "Zyxel" for product "Usg310" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg210 Firmware Search vendor "Zyxel" for product "Usg210 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg210 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg210 Search vendor "Zyxel" for product "Usg210" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg110 Firmware Search vendor "Zyxel" for product "Usg110 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg110 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg110 Search vendor "Zyxel" for product "Usg110" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg40 Firmware Search vendor "Zyxel" for product "Usg40 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg40 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg40 Search vendor "Zyxel" for product "Usg40" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg40w Firmware Search vendor "Zyxel" for product "Usg40w Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg40w Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg40w Search vendor "Zyxel" for product "Usg40w" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg60 Firmware Search vendor "Zyxel" for product "Usg60 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg60 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg60 Search vendor "Zyxel" for product "Usg60" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg60w Firmware Search vendor "Zyxel" for product "Usg60w Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg60w Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg60w Search vendor "Zyxel" for product "Usg60w" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg300 Firmware Search vendor "Zyxel" for product "Usg300 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg300 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg300 Search vendor "Zyxel" for product "Usg300" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg1000 Firmware Search vendor "Zyxel" for product "Usg1000 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg1000 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg1000 Search vendor "Zyxel" for product "Usg1000" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg2000 Firmware Search vendor "Zyxel" for product "Usg2000 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg2000 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg2000 Search vendor "Zyxel" for product "Usg2000" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg20 Firmware Search vendor "Zyxel" for product "Usg20 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg20 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg20 Search vendor "Zyxel" for product "Usg20" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg20w Firmware Search vendor "Zyxel" for product "Usg20w Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg20w Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg20w Search vendor "Zyxel" for product "Usg20w" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg50 Firmware Search vendor "Zyxel" for product "Usg50 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg50 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg50 Search vendor "Zyxel" for product "Usg50" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg100 Firmware Search vendor "Zyxel" for product "Usg100 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg100 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg100 Search vendor "Zyxel" for product "Usg100" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg200 Firmware Search vendor "Zyxel" for product "Usg200 Firmware" | >= 4.35 <= 4.64 Search vendor "Zyxel" for product "Usg200 Firmware" and version " >= 4.35 <= 4.64" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg200 Search vendor "Zyxel" for product "Usg200" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg Flex 100 Firmware Search vendor "Zyxel" for product "Usg Flex 100 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Usg Flex 100 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg Flex 100 Search vendor "Zyxel" for product "Usg Flex 100" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg Flex 200 Firmware Search vendor "Zyxel" for product "Usg Flex 200 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Usg Flex 200 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg Flex 200 Search vendor "Zyxel" for product "Usg Flex 200" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg Flex 500 Firmware Search vendor "Zyxel" for product "Usg Flex 500 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Usg Flex 500 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg Flex 500 Search vendor "Zyxel" for product "Usg Flex 500" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg Flex 100w Firmware Search vendor "Zyxel" for product "Usg Flex 100w Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Usg Flex 100w Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg Flex 100w Search vendor "Zyxel" for product "Usg Flex 100w" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg Flex 700 Firmware Search vendor "Zyxel" for product "Usg Flex 700 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Usg Flex 700 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg Flex 700 Search vendor "Zyxel" for product "Usg Flex 700" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall Atp100 Firmware Search vendor "Zyxel" for product "Zywall Atp100 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall Atp100 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall Atp100 Search vendor "Zyxel" for product "Zywall Atp100" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall Atp100w Firmware Search vendor "Zyxel" for product "Zywall Atp100w Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall Atp100w Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall Atp100w Search vendor "Zyxel" for product "Zywall Atp100w" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall Atp200 Firmware Search vendor "Zyxel" for product "Zywall Atp200 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall Atp200 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall Atp200 Search vendor "Zyxel" for product "Zywall Atp200" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall Atp500 Firmware Search vendor "Zyxel" for product "Zywall Atp500 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall Atp500 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall Atp500 Search vendor "Zyxel" for product "Zywall Atp500" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall Atp700 Firmware Search vendor "Zyxel" for product "Zywall Atp700 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall Atp700 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall Atp700 Search vendor "Zyxel" for product "Zywall Atp700" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall Atp800 Firmware Search vendor "Zyxel" for product "Zywall Atp800 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall Atp800 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall Atp800 Search vendor "Zyxel" for product "Zywall Atp800" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall Vpn50 Firmware Search vendor "Zyxel" for product "Zywall Vpn50 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall Vpn50 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall Vpn50 Search vendor "Zyxel" for product "Zywall Vpn50" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall Vpn100 Firmware Search vendor "Zyxel" for product "Zywall Vpn100 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall Vpn100 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall Vpn100 Search vendor "Zyxel" for product "Zywall Vpn100" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall Vpn300 Firmware Search vendor "Zyxel" for product "Zywall Vpn300 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall Vpn300 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall Vpn300 Search vendor "Zyxel" for product "Zywall Vpn300" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg20-vpn Firmware Search vendor "Zyxel" for product "Usg20-vpn Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Usg20-vpn Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg20-vpn Search vendor "Zyxel" for product "Usg20-vpn" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg20w-vpn Firmware Search vendor "Zyxel" for product "Usg20w-vpn Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Usg20w-vpn Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg20w-vpn Search vendor "Zyxel" for product "Usg20w-vpn" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Usg2200-vpn Firmware Search vendor "Zyxel" for product "Usg2200-vpn Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Usg2200-vpn Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Usg2200-vpn Search vendor "Zyxel" for product "Usg2200-vpn" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall 110 Firmware Search vendor "Zyxel" for product "Zywall 110 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall 110 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall 110 Search vendor "Zyxel" for product "Zywall 110" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall 310 Firmware Search vendor "Zyxel" for product "Zywall 310 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall 310 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall 310 Search vendor "Zyxel" for product "Zywall 310" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Zywall 1100 Firmware Search vendor "Zyxel" for product "Zywall 1100 Firmware" | >= 4.35 <= 5.01 Search vendor "Zyxel" for product "Zywall 1100 Firmware" and version " >= 4.35 <= 5.01" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Zywall 1100 Search vendor "Zyxel" for product "Zywall 1100" | - | - |
Safe
|