Vulnerability Details : CVE-2021-20853
ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a network-adjacent attacker with an administrator privilege to execute arbitrary OS commands via unspecified vectors.
Products affected by CVE-2021-20853
- cpe:2.3:o:elecom:wrh-733gbk_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-733gwh_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20853
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 11 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20853
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.2
|
MEDIUM | AV:A/AC:L/Au:S/C:P/I:P/A:P |
5.1
|
6.4
|
NIST | |
|
6.8
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.9
|
5.9
|
NIST |
CWE ids for CVE-2021-20853
-
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-2021-20853
-
https://jvn.jp/en/jp/JVN88993473/index.html
JVN#88993473: Multiple vulnerabilities in multiple ELECOM LAN routersThird Party Advisory
-
https://www.elecom.co.jp/news/security/20211130-01/
無線LANルーターのセキュリティ向上のためのファームウェアアップデートのお願い - 最新情報 - セキュリティ情報｜ELECOMVendor Advisory
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