CVE-2025-1221

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Source
https://cve.org/CVERecord?id=CVE-2025-1221
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-1221.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-1221
Published
2025-07-30T08:09:19.214Z
Modified
2026-07-15T01:49:03.724123464Z
Severity
  • 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
DoS in Zigbee device due to heavy traffic
Details

A Zigbee Radio Co-Processor (RCP), which is using SiLabs EmberZNet Zigbee stack, was unable to send messages to the host system (CPCd) due to heavy Zigbee traffic, resulting in a Denial of Service (DoS) attack, Only hard reset will bring the device to normal operation

Database specific 
{
    "cna_assigner": "Silabs",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/1xxx/CVE-2025-1221.json",
    "cwe_ids": [
        "CWE-667"
    ]
}
References

Affected packages

Git / github.com/siliconlabs/gecko_sdk

Affected ranges

Type
GIT
Repo
https://github.com/siliconlabs/gecko_sdk
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
0c27eb9faa76187e7aa6d8314f3cfc55bb2e766a
Introduced
d95099f4c05b3c40cece93d8a261dd471e642086
Last affected
d95099f4c05b3c40cece93d8a261dd471e642086
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.3.3"
        },
        {
            "introduced": "4.4.3"
        },
        {
            "last_affected": "4.4.3"
        }
    ]
}

Affected versions

4.*
4.4.3
v4.*
v4.2.0
v4.2.1
v4.2.2
v4.2.3
v4.3.0
v4.3.1
v4.3.2
v4.3.3
v4.4.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-1221.json"

Git / github.com/siliconlabs/simplicity_sdk

Affected ranges

Type
GIT
Repo
https://github.com/siliconlabs/simplicity_sdk
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
aa5ce2e835dfdce8c20fb828f27d3a261946f946
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2024.6.1"
        }
    ]
}

Affected versions

v2024.*
v2024.6.0
v2024.6.1-0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-1221.json"