CVE-2020-9420

MEDIUMNVD 6.56.5—

6.5

The login password of the web administrative dashboard in Arcadyan Wifi routers VRV9506JAC23 is sent in cleartext, allowing an attacker to sniff and intercept traffic to learn the administrative credentials to the router.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 36.3%
KEV: Not listed

Published

December 14, 2022

Last Modified

April 22, 2025

References (2)

cve@mitrehttps://gist.github.com/AsherDLL/03d0762b5a535e300f1121caebe333ce
af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/AsherDLL/03d0762b5a535e300f1121caebe333ce

Weakness Classification(1)

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

CWE-319Cleartext Transmission of Sensitive Information

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
2026-05-26 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
2026-05-25 10:37 UTCEG score recompute
2026-05-25 10:37 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2020-9420?

CVE-2020-9420 is a medium vulnerability published on December 14, 2022. The login password of the web administrative dashboard in Arcadyan Wifi routers VRV9506JAC23 is sent in cleartext, allowing an attacker to sniff and intercept traffic to learn the administrative credentials to the router.

When was CVE-2020-9420 disclosed?

CVE-2020-9420 was first published in the National Vulnerability Database on December 14, 2022, with the most recent update on April 22, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-9420 actively exploited?

CVE-2020-9420 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-9420?

CVE-2020-9420 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2020-9420?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-9420, 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-9420

Explore →

Is Your Infrastructure Affected by CVE-2020-9420?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2020-9420

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-9420?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)