CVE-2022-46402: microchip bm70_firmware
CVSS: 6.5v3.1MediumModified
Published 19-12-2022Last modified 17-04-2025
Vulnerability summary
CVE-2022-46402 is a medium (CVSS 6.5) vulnerability in microchip bm70_firmware. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 41.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.49%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 19-12-2022PublishedVulnerability first disclosed.
- 17-04-2025Last modifiedVulnerability information updated.
Description
The Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) accepts PairCon_rmSend with incorrect values.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- NVDNIST6.5MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.49%
Chance of exploitation in the next 30 days
Percentile
41%
Versus all other CVEs
30-day change
+0.01 pp
From 0.48% on 20-09-2026
20-09-202620-10-2026
EPSS score0.49%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (computer.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Microchip9 products
- bm70_firmware1.43
- bm71_firmware1.43
- bm78_firmware1.43
- bm83_firmware1.43
- is1870_firmware1.43
1 vendor · 9 products
References
4 links- www.computer.org/csdl/proceedings/sp/2023/1He7WWuJExGThird Party Advisory
- www.computer.org/csdl/proceedings-article/sp/2023/933600a521/1He7Yja1AYMExploitTechnical DescriptionThird Party Advisory
- microchip.comProduct
- www.microchip.com/en-us/…Vendor Advisory