Medium severity6.5NVD Advisory· Published Nov 9, 2020· Updated Jun 17, 2026
CVE-2020-28349
CVE-2020-28349
Description
An inaccurate frame deduplication process in ChirpStack Network Server 3.9.0 allows a malicious gateway to perform uplink Denial of Service via malformed frequency attributes in CollectAndCallOnceCollect in internal/uplink/collect.go. NOTE: the vendor's position is that there are no "guarantees that allowing untrusted LoRa gateways to the network should still result in a secure network.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:chirpstack:network_server:3.9.0:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:chirpstack:network_server:3.9.0:*:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: =3.9.0
Patches
Vulnerability mechanics
References
3- github.com/brocaar/chirpstack-network-server/commit/874fc1a9b01045ebe8a340f0bb01ed19e8256e60nvdPatchThird Party Advisory
- github.com/brocaar/chirpstack-network-server/commit/f996bb0c6c85281b5658f59ff09db1b4a73db453nvdPatchThird Party Advisory
- www.cyberark.com/resources/threat-research-blog/lorawan-mqtt-what-to-know-when-securing-your-iot-networknvdExploitThird Party Advisory
News mentions
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