8.6

CVE-2022-46403: microchip bm70_firmware

CVSS: 8.6v3.1HighModified
Published 19-12-2022Last modified 17-04-2025
Open JSON

Vulnerability summary

CVE-2022-46403 is a high (CVSS 8.6) vulnerability in microchip bm70_firmware. EPSS estimates a 0.89% chance of exploitation in the next 30 days, higher than 58.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
45/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (CVE.org)
EPSS score
0.89%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 19-12-2022
    PublishedVulnerability first disclosed.
  2. 17-04-2025
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.89%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

+0.06 pp

From 0.83% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.89%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (computer.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Microchip9 products

1 vendor · 9 products

References

4 links