CVE-2020-9438

MEDIUMNVD 5.95.9—

5.9

Tinxy Door Lock with firmware before 3.2 allow attackers to unlock a door by replaying an Unlock request that occurred when the attacker was previously authorized. In other words, door-access revocation is mishandled.

CVSS v3: 5.9
EG Score: 5.9(medium)
EPSS: 41.6%
KEV: Not listed

Published

June 23, 2020

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://medium.com/%40avishek_75733/smart-products-are-always-not-that-smart-tinxy-smart-door-lock-vulnerability-97f91e435e06
af854a3a-2127-422b-91ae-364da2661108https://medium.com/%40avishek_75733/smart-products-are-always-not-that-smart-tinxy-smart-door-lock-vulnerability-97f91e435e06

Weakness Classification(1)

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

CWE-294Authentication Bypass by Capture-replay

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 02:03 UTCEG score recompute
2026-05-27 02:03 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-2020-9438?

CVE-2020-9438 is a medium vulnerability published on June 23, 2020. Tinxy Door Lock with firmware before 3.2 allow attackers to unlock a door by replaying an Unlock request that occurred when the attacker was previously authorized. In other words, door-access revocation is mishandled.

When was CVE-2020-9438 disclosed?

CVE-2020-9438 was first published in the National Vulnerability Database on June 23, 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-2020-9438 actively exploited?

CVE-2020-9438 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-9438?

CVE-2020-9438 has a CVSS v3 base score of 5.9 (NVD).

How do I remediate CVE-2020-9438?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-9438, 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

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CVE-2020-9438

📅 Published

🔄 Last Modified

🔗 References (2)