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CVE-2020-5634

HIGH
8.8
CVSS Score
Published: October 6, 2020 at 05:00 AM UTC
Updated: June 17, 2026 at 03:21 AM UTC
8 products affected across 1 vendorWrc 2533GST2 FirmwareWrc 1167GST2 FirmwareWrc 1900GST2 Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%

Description

ELECOM LAN routers (WRC-2533GST2 firmware versions prior to v1.14, WRC-1900GST2 firmware versions prior to v1.14, WRC-1750GST2 firmware versions prior to v1.14, and WRC-1167GST2 firmware versions prior to v1.10) allow an attacker on the same network segment to execute arbitrary OS commands with a root privilege via unspecified vectors.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Wrc 1167GST2 Firmware· Elecom
95%
v < 1.10
Affected range stops below 1.10, so it looks safe — our inference, not a vendor statement
Wrc 1750GST2 Firmware· Elecom
95%
v < 1.14
Affected range stops below 1.14, so it looks safe — our inference, not a vendor statement
elecom-wrc-1750gst2 (same device)
Wrc 1900GST2 Firmware· Elecom
95%
v < 1.14
Affected range stops below 1.14, so it looks safe — our inference, not a vendor statement
elecom-wrc-1900gst2 (same device)
Wrc 2533GST2 Firmware· Elecom
95%
v < 1.14
Affected range stops below 1.14, so it looks safe — our inference, not a vendor statement
WRC-1167GST2· Elecom
90%
v < 1.10
Affected range stops below 1.10, so it looks safe — our inference, not a vendor statement
WRC-2533GST2· Elecom
90%
v < 1.14
Affected range stops below 1.14, so it looks safe — our inference, not a vendor statement
Wrc-1750Gst2· Elecomdevice
80%
All versions
Wrc-1900Gst2· Elecomdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://jvn.jp/en/jp/JVN82892096/index.html
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.elecom.co.jp/news/security/20201005-01/

CVSS

8.8HIGH[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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