Vulnerability Details : CVE-2021-42659
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.
Vulnerability category: Overflow
Products affected by CVE-2021-42659
- cpe:2.3:o:tenda:ac9_firmware:15.03.06.42_multi:*:*:*:*:*:*:*
- cpe:2.3:o:tenda:ac9_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-42659
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 17 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42659
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.1
|
MEDIUM | AV:A/AC:L/Au:N/C:N/I:N/A:C |
6.5
|
6.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-42659
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-42659
-
https://github.com/Lyc-heng/routers/blob/main/routers/stack4.md
routers/stack4.md at main · Lyc-heng/routers · GitHubExploit;Third Party Advisory
-
https://www.cnvd.org.cn/flaw/show/CNVD-2021-24948
Third Party Advisory
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