High severity8.8NVD Advisory· Published Jul 7, 2021· Updated Jun 17, 2026
CVE-2021-20739
CVE-2021-20739
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
15- cpe:2.3:o:elecom:wrc-300febk_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrc-733febk_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrc-f300nf_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300bk-s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300bk_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300rd_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300sv_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300wh-s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-300wh_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-h300bk_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:elecom:wrh-h300wh_firmware:*:*:*:*:*:*:*:*
- Range: all versions
- Range: all versions
- Range: all versions
- ELECOM CO.,LTD./WRC-300FEBK, WRC-F300NF, WRC-733FEBK, WRH-300RD, WRH-300BK, WRH-300SV, WRH-300WH, WRH-H300WH, WRH-H300BK, WRH-300BK-S, and WRH-300WH-Sv5Range: all versions
Patches
Vulnerability mechanics
References
2- jvn.jp/en/vu/JVNVU94260088/index.htmlnvdThird Party Advisory
- www.elecom.co.jp/news/security/20210706-01/nvdVendor Advisory
News mentions
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