The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo…
Priority LOW 36CWE-400Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-400.
Summary
The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) is unresponsive with ConReqTimeoutZero.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00768 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 28
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microchip:bm78_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:bm78:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:bm83_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:bm83:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:rn4870_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:rn4870:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:rn4871_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:rn4871:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:bm70_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:bm70:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
- cpe:2.3:o:microchip:bm78_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:bm78:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:bm83_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:bm83:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:rn4870_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:rn4870:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:rn4871_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:rn4871:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:bm70_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:bm70:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
Show 18 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microchip:bm71_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:bm71:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:pic_lightblue_explorer_demo_firmware:4.2_dt100112:*:*:*:*:*:*:* | 4.2_dt100112 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:pic_lightblue_explorer_demo:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:bm64_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:bm64:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:bm77_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:bm77:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:is1870_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:is1870:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:is1871_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:is1871:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:rn4678_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:rn4678:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:pic32cx1012bz25048_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:pic32cx1012bz25048:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
| cpe:2.3:o:microchip:wbz451_firmware:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Microchip |
| cpe:2.3:h:microchip:wbz451:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microchip |
- cpe:2.3:o:microchip:bm71_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:bm71:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:pic_lightblue_explorer_demo_firmware:4.2_dt100112:*:*:*:*:*:*:* Versions 4.2_dt100112 Vulnerable ·Microchip
- cpe:2.3:h:microchip:pic_lightblue_explorer_demo:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:bm64_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:bm64:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:bm77_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:bm77:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:is1870_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:is1870:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:is1871_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:is1871:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:rn4678_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:rn4678:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:pic32cx1012bz25048_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:pic32cx1012bz25048:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
- cpe:2.3:o:microchip:wbz451_firmware:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Microchip
- cpe:2.3:h:microchip:wbz451:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-46399
- 2026-10-03 Alias added: GHSA-6w9r-9p3m-qrj9
References
Advisory 2
Other 1
More Microchip Bm64 Firmware vulnerabilities
- TI-2022-22932 The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo… CVSS 3.1MEDIUM 5.4
Sources
- CVE-2022-46399 · CVE Program
- CVE-2022-46399 · NVD
- FIRST EPSS
- GHSA-6w9r-9p3m-qrj9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences