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HIGH · 8.0

CVE-2021-20859

ELECOM LAN routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, WRC-2533GS2-W firmwar...

Vulnerability Description

ELECOM LAN routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, WRC-2533GS2-W firmware v1.52 and prior, WRC-1750GS firmware v1.03 and prior, WRC-1750GSV firmware v2.11 and prior, WRC-1900GST firmware v1.03 and prior, WRC-2533GST firmware v1.03 and prior, WRC-2533GSTA firmware v1.03 and prior, WRC-2533GST2 firmware v1.25 and prior, WRC-2533GST2SP firmware v1.25 and prior, WRC-2533GST2-G firmware v1.25 and prior, and EDWRC-2533GST2 firmware v1.25 and prior) allows a network-adjacent authenticated attacker to execute an arbitrary OS command via unspecified vectors.

CVSS Score

8.0

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
ElecomWrc-1167Gst2 Firmware<= 1.25
ElecomWrc-1167Gst2-
ElecomWrc-1167Gst2A Firmware<= 1.25
ElecomWrc-1167Gst2A-
ElecomWrc-1167Gst2H Firmware<= 1.25
ElecomWrc-1167Gst2H-
ElecomWrc-2533Gs2-B Firmware<= 1.52
ElecomWrc-2533Gs2-B-
ElecomWrc-2533Gs2-W Firmware<= 1.52
ElecomWrc-2533Gs2-W-
ElecomWrc-1750Gs Firmware<= 1.03
ElecomWrc-1750Gs-
ElecomWrc-1750Gsv Firmware<= 2.11
ElecomWrc-1750Gsv-
ElecomWrc-1900Gst Firmware<= 1.03
ElecomWrc-1900Gst-
ElecomWrc-2533Gst Firmware<= 1.03
ElecomWrc-2533Gst-
ElecomWrc-2533Gst2 Firmware<= 1.25
ElecomWrc-2533Gst2-

Related Weaknesses (CWE)

CWE-78

References

FAQ

What is CVE-2021-20859?

CVE-2021-20859 is a vulnerability with a CVSS score of 8.0 (HIGH). ELECOM LAN routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, WRC-2533GS2-W firmwar...

How severe is CVE-2021-20859?

CVE-2021-20859 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20859?

Check the references section above for vendor advisories and patch information. Affected products include: Elecom Wrc-1167Gst2 Firmware, Elecom Wrc-1167Gst2, Elecom Wrc-1167Gst2A Firmware, Elecom Wrc-1167Gst2A, Elecom Wrc-1167Gst2H Firmware.