CVE-2022-46401

MEDIUMNVD 5.45.4—

5.4

The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) accepts PauseEncReqPlainText before pairing is complete.

CVSS v3: 5.4
EG Score: 5.4(medium)
EPSS: 46.6%
KEV: Not listed

Published

December 19, 2022

Last Modified

April 17, 2025

References (8)

cve@mitrehttps://microchip.com
cve@mitrehttps://www.computer.org/csdl/proceedings-article/sp/2023/933600a521/1He7Yja1AYM
cve@mitrehttps://www.computer.org/csdl/proceedings/sp/2023/1He7WWuJExG
cve@mitrehttps://www.microchip.com/en-us/products/wireless-connectivity/software-vulnerability-response/deviating-behaviors-in-bluetooth-le
af854a3a-2127-422b-91ae-364da2661108https://microchip.com
af854a3a-2127-422b-91ae-364da2661108https://www.computer.org/csdl/proceedings-article/sp/2023/933600a521/1He7Yja1AYM
af854a3a-2127-422b-91ae-364da2661108https://www.computer.org/csdl/proceedings/sp/2023/1He7WWuJExG
af854a3a-2127-422b-91ae-364da2661108https://www.microchip.com/en-us/products/wireless-connectivity/software-vulnerability-response/deviating-behaviors-in-bluetooth-le

Weakness Classification(1)

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

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 12× in last 7d / 54× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-22 14:24 UTCEPSS rescore
2026-06-21 14:55 UTCEPSS rescore
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2026-06-21 01:58 UTCEPSS rescore
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2026-06-18 17:51 UTCEPSS rescore
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2026-06-15 17:46 UTCEPSS rescore
2026-06-14 23:16 UTCEPSS rescore
2026-06-13 22:59 UTCEPSS rescore
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2026-06-11 13:58 UTCEPSS rescore
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2026-06-10 22:17 UTCEPSS rescore
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2026-06-08 14:15 UTCEPSS rescore
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2026-06-06 13:46 UTCEPSS rescore
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2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
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2026-06-04 13:11 UTCEPSS rescore
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2026-06-01 13:50 UTCEPSS rescore
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2026-05-31 22:29 UTCEPSS rescore
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2026-05-31 00:15 UTCEPSS rescore
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2026-05-29 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-27 13:39 UTCEPSS rescore
2026-05-27 13:39 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 07:17 UTCEPSS rescore
2026-05-26 07:17 UTCEPSS rescore
2026-05-26 07:17 UTCEPSS rescore
2026-05-25 10:12 UTCEG score recompute
2026-05-25 10:12 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2022-46401?

CVE-2022-46401 is a medium vulnerability published on December 19, 2022. The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) accepts PauseEncReqPlainText before pairing is complete.

When was CVE-2022-46401 disclosed?

CVE-2022-46401 was first published in the National Vulnerability Database on December 19, 2022, with the most recent update on April 17, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-46401 actively exploited?

CVE-2022-46401 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 46.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-46401?

CVE-2022-46401 has a CVSS v3 base score of 5.4 (NVD).

How do I remediate CVE-2022-46401?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-46401, 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-2022-46401

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-46401?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)