Is CVE-2020-5634 in the CISA KEV catalog?

No. CVE-2020-5634 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-5634?

CVE-2020-5634 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2020-5634?

CVE-2020-5634 has an EPSS score of 0.61% (45th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-5634?

Upgrade wrc-1167gst2 firmware to 1.10 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2020-5634

HIGH

8.8

CVSS v3

NVD

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.

How to fix

Remediation Available

wrc-1167gst2 firmwareNVD

Affected:< 1.10Fixed in:1.10CVE-2020-5634derived from NVD

wrc-1750gst2 firmwareNVD

Affected:< 1.14Fixed in:1.14CVE-2020-5634derived from NVD

wrc-1900gst2 firmwareNVD

Affected:< 1.14Fixed in:1.14CVE-2020-5634derived from NVD

wrc-2533gst2 firmwareNVD

Affected:< 1.14Fixed in:1.14CVE-2020-5634derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.61%probability of exploitation in 30 days

45thpercentile

Moderate risk: more likely to be exploited than 45% of all known CVEs.

References

Vendor Advisory1

elecom.co.jp

Third-Party Advisory1

jvn.jp

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.