Denial of service on Microchip RN4870 devices
Priority LOW 20CWE-239Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
On Microchip RN4870 devices, when more than one consecutive PairReqNoInputNoOutput request is received, the device becomes incapable of completing the pairing process. A third party can inject a second PairReqNoInputNoOutput request just after a real one, causing the pair request to be blocked.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00234 14th percentileScored 2026-11-07
Fix Fixed RN4870 (Microchip): 1.44
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA RN4870 (Microchip) Fixed in 1.44
Timeline
- 2026-10-02 Threatist record created from CVE-2024-29155
- 2026-10-03 Alias added: GHSA-hw2r-jgp3-3h2v
References
More Microchip vulnerabilities
- TI-2022-18950 Microchip Technology (Microsemi) SyncServer S650 was discovered to contain a command injection vulnerability. CVSS 3.1CRITICAL 9.8
- TI-2023-28092 Improper input validation in Siemens SIMATIC IPC1047E CVSS 3.1CRITICAL 10.0
- TI-2024-19958 Microchip Harmony 3 Core library allows read and write access to RAM via a SCSI READ or WRITE command CVSS 4.0HIGH 7.0
- TI-2024-08405 Remote code Execution inTimeProvider® 4100 CVSS 4.0HIGH 8.5
- TI-2009-01524 Multiple buffer overflows in Microchip MPLAB IDE 8.30 and possibly earlier versions allow… CVSS 2.0HIGH 9.3
- TI-2020-13207 An issue was discovered in picoTCP 1.7.0. CVSS 3.1CRITICAL 9.1
Sources
- CVE-2024-29155 · CVE Program
- CVE-2024-29155 · NVD
- FIRST EPSS
- GHSA-hw2r-jgp3-3h2v · GitHub Advisory Database · CC BY 4.0
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