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PatchSiren cyber security CVE debrief

CVE-2025-12131 Silabs CVE debrief

A truncated 802.15.4 packet can lead to an assert in the Silabs Simplicity Software Development Kit, resulting in a denial of service. This vulnerability, CVE-2025-12131, was published on 2026-02-05T20:15:52.130Z. The vulnerability affects organizations using Silabs Simplicity Software Development Kit. The CVSS score is 5.3, indicating medium severity. The vulnerability involves a truncated 802.15.4 packet that can lead to an assert, causing a denial of service.

Vendor
Silabs
Product
Simplicity Software Development Kit
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-02-05
Original CVE updated
2026-08-20
Advisory published
2026-02-05
Advisory updated
2026-08-20

Who should care

Organizations using Silabs Simplicity Software Development Kit should be aware of this vulnerability and take necessary actions to mitigate the risk of denial of service via truncated 802.15.4 packets. Operators, security teams, and platform administrators should review the vulnerability details and plan for remediation or compensating controls as needed.

Technical summary

The vulnerability CVE-2025-12131 involves a truncated 802.15.4 packet that can lead to an assert in the Silabs Simplicity Software Development Kit, resulting in a denial of service. The vulnerability has a CVSS score of 5.3 and is considered medium severity. Affected organizations should verify Simplicity Software Development Kit versions and apply vendor remediation if available.

Defensive priority

Medium priority due to potential denial of service via truncated 802.15.4 packets.

Recommended defensive actions

  • Inventory and verify affected Simplicity Software Development Kit versions.
  • Apply vendor remediation if available.
  • Monitor for truncated 802.15.4 packet anomalies.
  • Implement compensating controls for network traffic validation.
  • Review relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

Evidence from official CVE and NVD sources indicates a medium severity vulnerability in Silabs Simplicity Software Development Kit, with a CVSS score of 5.3. The vulnerability involves a truncated 802.15.4 packet leading to an assert, causing a denial of service.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-12131 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-12131

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-12131 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-12131

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.