Vulnerability Details : CVE-2021-20739
WRC-300FEBK, WRC-F300NF, WRC-733FEBK, WRH-300RD, WRH-300BK, WRH-300SV, WRH-300WH, WRH-H300WH, WRH-H300BK, WRH-300BK-S, and WRH-300WH-S all versions allows an unauthenticated network-adjacent attacker to execute an arbitrary OS command via unspecified vectors.
Products affected by CVE-2021-20739
- cpe:2.3:o:elecom:wrc-300febk_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrc-f300nf_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrc-733febk_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300rd_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300bk_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300sv_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300wh_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-h300wh_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-h300bk_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300bk-s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300wh-s_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20739
0.33%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 53 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20739
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:A/AC:L/Au:N/C:P/I:P/A:P |
6.5
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2021-20739
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20739
-
https://jvn.jp/en/vu/JVNVU94260088/index.html
JVNVU#94260088: Multiple vulnerabilities in Elecom routersThird Party Advisory
-
https://www.elecom.co.jp/news/security/20210706-01/
無線LANルーターなどネットワーク製品の一部における脆弱性に関して - 最新情報 - セキュリティ情報｜ELECOMVendor Advisory
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