7.5

CVE-2022-46399: microchip bm64_firmware Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighModified
Published 19-12-2022Last modified 17-04-2025
Open JSON

Vulnerability summary

CVE-2022-46399 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in microchip bm64_firmware. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 54.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.77%
0%100%
Low · +0.02 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) is unresponsive with ConReqTimeoutZero.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.77%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

+0.02 pp

From 0.75% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.77%

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

Microchip14 products

1 vendor · 14 products

References

4 links