CVE-2021-42659
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
There is a buffer overflow vulnerability in the Web server httpd of the router in Tenda router devices such as Tenda AC9 V1.0 V15.03.02.19(6318) and Tenda AC9 V3.0 V15.03.06.42_multi. When setting the virtual service, the httpd program will crash and exit when the super-long list parameter occurs.
Se presenta una vulnerabilidad de desbordamiento de búfer en el servidor web httpd del router en los dispositivos de router Tenda, como Tenda AC9 versión V1.0 V15.03.02.19(6318) y Tenda AC9 versión V3.0 V15.03.06.42_multi. Cuando es configurado el servicio virtual, el programa httpd es bloqueado y sale cuando es producido el parámetro de lista superlarga
*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
- 2021-10-18 CVE Reserved
- 2022-05-24 CVE Published
- 2023-12-15 EPSS Updated
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://www.cnvd.org.cn/flaw/show/CNVD-2021-24948 | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://github.com/Lyc-heng/routers/blob/main/routers/stack4.md | 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 |
| Tenda Search vendor "Tenda" | Ac9 Firmware Search vendor "Tenda" for product "Ac9 Firmware" | 15.03.05.19\(6318\) Search vendor "Tenda" for product "Ac9 Firmware" and version "15.03.05.19\(6318\)" | - |
Affected
| in | Tenda Search vendor "Tenda" | Ac9 Search vendor "Tenda" for product "Ac9" | 1.0 Search vendor "Tenda" for product "Ac9" and version "1.0" | - |
Safe
|
| Tenda Search vendor "Tenda" | Ac9 Firmware Search vendor "Tenda" for product "Ac9 Firmware" | 15.03.06.42_multi Search vendor "Tenda" for product "Ac9 Firmware" and version "15.03.06.42_multi" | - |
Affected
| in | Tenda Search vendor "Tenda" | Ac9 Search vendor "Tenda" for product "Ac9" | 3.0 Search vendor "Tenda" for product "Ac9" and version "3.0" | - |
Safe
|