CVE-2020-29563

CRITICALNVD 9.89.8—

9.8

An issue was discovered on Western Digital My Cloud OS 5 devices before 5.07.118. A NAS Admin authentication bypass vulnerability could allow an unauthenticated user to gain access to the device.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 90.5%
KEV: Not listed

Published

December 12, 2020

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://www.westerndigital.com/support/productsecurity/wdc-20010-my-cloud-os5-firmware-5-07-118
cve@mitrehttps://www.zerodayinitiative.com/advisories/ZDI-20-1446/
af854a3a-2127-422b-91ae-364da2661108https://www.westerndigital.com/support/productsecurity/wdc-20010-my-cloud-os5-firmware-5-07-118
af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-20-1446/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-287Improper Authentication

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2020-29563?

CVE-2020-29563 is a critical vulnerability published on December 12, 2020. An issue was discovered on Western Digital My Cloud OS 5 devices before 5.07.118. A NAS Admin authentication bypass vulnerability could allow an unauthenticated user to gain access to the device.

When was CVE-2020-29563 disclosed?

CVE-2020-29563 was first published in the National Vulnerability Database on December 12, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-29563 actively exploited?

CVE-2020-29563 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-29563?

CVE-2020-29563 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-29563?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-29563, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2020-29563

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-29563?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

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