CVE-2022-45192Public exploit

BLE service interruption via plaintext encryption-pause request

Published Feb 7, 2023 · Updated Mar 25, 2025

Denial of service in Microchip RN4870 firmware 1.43 allows physically proximate attackers to interrupt BLE communication via a crafted request. The BLE state machine accepts a plaintext PauseEncReq before pairing completes, returns PauseEncResp instead of ignoring the invalid message, enters an incorrect state, and discards subsequent central-device messages. Exploitation requires BLE radio range and an existing connection, and the resulting state prevents pairing and communication with the affected central device.

CVSS severity6.5
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Microchip RN4870 firmware 1.43 allows physically proximate attackers to interrupt BLE communication via a crafted request. The BLE state machine accepts a plaintext PauseEncReq before pairing completes, returns PauseEncResp instead of ignoring the invalid message, enters an incorrect state, and discards subsequent central-device messages. Exploitation requires BLE radio range and an existing connection, and the resulting state prevents pairing and communication with the affected central device.

The record

CVE
CVE-2022-45192
Published
Feb 7, 2023
Updated
Mar 25, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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