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CVE-2022-45191

21
FAUCET Score

CVE-2022-45191 is a denial-of-service vulnerability affecting Microchip RN4870 devices running firmware version 1.43. An attacker within Bluetooth Low Energy (BLE) radio range can trigger the denial of service by sending a malformed pair confirm message. This vulnerability has a CVSS score of 6.5 (Medium), indicating a low-complexity attack with no user interaction required, leading to high availability impact. There is currently no public exploit code available, nor is there any evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.43CPE matchmatch criteria
cpe:2.3:o:microchip:rn4870_firmware:1.43:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 12th percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

microchip.com / en-us/support/product-change-notification
Issue Tracking