CVE-2021-42911
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A Format String vulnerability exists in DrayTek Vigor 2960 <= 1.5.1.3, DrayTek Vigor 3900 <= 1.5.1.3, and DrayTek Vigor 300B <= 1.5.1.3 in the mainfunction.cgi file via a crafted HTTP message containing malformed QUERY STRING, which could let a remote malicious user execute arbitrary code.
Se presenta una vulnerabilidad de cadena de formato en DrayTek Vigor 2960 versiones anteriores a 1.5.1.3 incluyéndola, DrayTek Vigor 3900 versiones anteriores a 1.5.1.3 incluyéndola, y DrayTek Vigor 300B versiones anteriores a 1.5.1.3 incluyéndola, en el archivo mainfunction.cgi por medio de un mensaje HTTP diseñado que contiene una cadena de consulta malformada, lo que podría permitir a un usuario remoto malicioso ejecutar código arbitrario
*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
- 2021-10-25 CVE Reserved
- 2022-03-29 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2025-01-07 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-134: Use of Externally-Controlled Format String
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://gist.github.com/Cossack9989/e9c1c2d2e69b773ca4251acdd77f2835 | 2024-08-04 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Draytek Search vendor "Draytek" | Vigor2960 Firmware Search vendor "Draytek" for product "Vigor2960 Firmware" | <= 1.5.1.3 Search vendor "Draytek" for product "Vigor2960 Firmware" and version " <= 1.5.1.3" | - |
Affected
| in | Draytek Search vendor "Draytek" | Vigor2960 Search vendor "Draytek" for product "Vigor2960" | - | - |
Safe
|
| Draytek Search vendor "Draytek" | Vigor3900 Firmware Search vendor "Draytek" for product "Vigor3900 Firmware" | <= 1.5.1.3 Search vendor "Draytek" for product "Vigor3900 Firmware" and version " <= 1.5.1.3" | - |
Affected
| in | Draytek Search vendor "Draytek" | Vigor3900 Search vendor "Draytek" for product "Vigor3900" | - | - |
Safe
|
| Draytek Search vendor "Draytek" | Vigor300b Firmware Search vendor "Draytek" for product "Vigor300b Firmware" | <= 1.5.1.3 Search vendor "Draytek" for product "Vigor300b Firmware" and version " <= 1.5.1.3" | - |
Affected
| in | Draytek Search vendor "Draytek" | Vigor300b Search vendor "Draytek" for product "Vigor300b" | - | - |
Safe
|