Vulnerability Details : CVE-2021-31755
An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setmac allows attackers to execute arbitrary code on the system via a crafted post request.
Vulnerability category: OverflowMemory CorruptionExecute code
Products affected by CVE-2021-31755
- cpe:2.3:o:tenda:ac11_firmware:*:*:*:*:*:*:*:*
CVE-2021-31755 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Tenda AC11 Router Stack Buffer Overflow Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Tenda AC11 devices contain a stack buffer overflow vulnerability in /goform/setmac which allows attackers to execute code via a crafted post request.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2021-31755
Added on
2021-11-03
Action due date
2021-11-17
Exploit prediction scoring system (EPSS) score for CVE-2021-31755
97.14%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-31755
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-31755
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-31755
-
https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3
IoT_CVE/Tenda/CVE_3 at main · Yu3H0/IoT_CVE · GitHubExploit;Issue Tracking;Third Party Advisory
Jump to