CVE-2021-20739 — HIGH (8.8)

Vulnerability 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.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Elecom	Wrc-300Febk Firmware	All versions
Elecom	Wrc-300Febk	-
Elecom	Wrc-F300Nf Firmware	All versions
Elecom	Wrc-F300Nf	-
Elecom	Wrc-733Febk Firmware	All versions
Elecom	Wrc-733Febk	-
Elecom	Wrh-300Rd Firmware	All versions
Elecom	Wrh-300Rd	-
Elecom	Wrh-300Bk Firmware	All versions
Elecom	Wrh-300Bk	-
Elecom	Wrh-300Sv Firmware	All versions
Elecom	Wrh-300Sv	-
Elecom	Wrh-300Wh Firmware	All versions
Elecom	Wrh-300Wh	-
Elecom	Wrh-H300Wh Firmware	All versions
Elecom	Wrh-H300Wh	-
Elecom	Wrh-H300Bk Firmware	All versions
Elecom	Wrh-H300Bk	-
Elecom	Wrh-300Bk-S Firmware	All versions
Elecom	Wrh-300Bk-S	-

Related Weaknesses (CWE)

CWE-78

References

https://jvn.jp/en/vu/JVNVU94260088/index.htmlThird Party Advisory
https://www.elecom.co.jp/news/security/20210706-01/Vendor Advisory
https://jvn.jp/en/vu/JVNVU94260088/index.htmlThird Party Advisory
https://www.elecom.co.jp/news/security/20210706-01/Vendor Advisory

FAQ

What is CVE-2021-20739?

CVE-2021-20739 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ...

How severe is CVE-2021-20739?

CVE-2021-20739 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20739?

Check the references section above for vendor advisories and patch information. Affected products include: Elecom Wrc-300Febk Firmware, Elecom Wrc-300Febk, Elecom Wrc-F300Nf Firmware, Elecom Wrc-F300Nf, Elecom Wrc-733Febk Firmware.