CVE-2020-9278

CRITICALNVD 9.19.1—

9.1

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. The device can be reset to its default configuration by accessing an unauthenticated URL.

CVSS v3: 9.1
EG Score: 9.1(medium)
EPSS: 70.9%
KEV: Not listed

Published

April 20, 2020

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://raelize.com/advisories/CVE-2020-9278_D-Link-DSL-2640B_Unauthenticated-configuration-reset_v1.0.txt
cve@mitrehttps://raelize.com/posts/d-link-dsl-2640b-security-advisories/
cve@mitrehttps://www.dlink.com/en/security-bulletin
af854a3a-2127-422b-91ae-364da2661108https://raelize.com/advisories/CVE-2020-9278_D-Link-DSL-2640B_Unauthenticated-configuration-reset_v1.0.txt
af854a3a-2127-422b-91ae-364da2661108https://raelize.com/posts/d-link-dsl-2640b-security-advisories/
af854a3a-2127-422b-91ae-364da2661108https://www.dlink.com/en/security-bulletin

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 18× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 04:33 UTCEG score recompute
2026-05-27 04:33 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2020-9278?

CVE-2020-9278 is a critical vulnerability published on April 20, 2020. An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. The device can be reset to its default configuration by accessing an unauthenticated URL.

When was CVE-2020-9278 disclosed?

CVE-2020-9278 was first published in the National Vulnerability Database on April 20, 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-2020-9278 actively exploited?

CVE-2020-9278 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 70.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-9278?

CVE-2020-9278 has a CVSS v3 base score of 9.1 (NVD).

How do I remediate CVE-2020-9278?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-9278, 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-2020-9278

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-9278?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)