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01 Record

CVE-2022-46402

The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) accepts PairCon_rmSend with incorrect values.

MediumPUBLISHEDCNA: mitre
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) accepts PairCon_rmSend with incorrect values.

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.49% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 42.0% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-12-19 00:00Z3 YR AGO
Last updated
2025-04-17 14:12Z1 YR AGO
Reserved
2022-12-04
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-354Improper Validation of Integrity Check ValueBase
Data version
5.1
Document digest
7047e5f101e88d5c56578d6ec25a47bff4d909dfbf336aa70c3ad3585461a05e

05 Affected products

VendorProductVersionsPlatforms
microchipbm70Not specified—
microchipbm70_firmwareNot specified—
microchipbm71Not specified—
microchipbm71_firmwareNot specified—
microchipbm78Not specified—
microchipbm78_firmwareNot specified—
microchipbm83Not specified—
microchipbm83_firmwareNot specified—
microchipis1870Not specified—
microchipis1870_firmwareNot specified—
microchipis1871Not specified—
microchipis1871_firmwareNot specified—
microchippic_lightblue_explorer_demoNot specified—
microchippic_lightblue_explorer_demo_firmwareNot specified—
microchiprn4870Not specified—
microchiprn4870_firmwareNot specified—
microchiprn4871Not specified—
microchiprn4871_firmwareNot specified—

06 References