CVE-2022-46403

HIGHNVD 8.68.6—

8.6

The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) mishandles reject messages.

CVSS v3: 8.6
EG Score: 8.6(medium)
EPSS: 53.6%
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-755Improper Handling of Exceptional Conditions

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 10:12 UTCEG score recompute
2026-05-25 10:12 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2022-46403?

CVE-2022-46403 is a high vulnerability published on December 19, 2022. The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) mishandles reject messages.

When was CVE-2022-46403 disclosed?

CVE-2022-46403 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-2022-46403 actively exploited?

CVE-2022-46403 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 53.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-46403?

CVE-2022-46403 has a CVSS v3 base score of 8.6 (NVD).

How do I remediate CVE-2022-46403?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-46403, 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-2022-46403

📅 Published

🔄 Last Modified

🔗 References (8)