What’s Vulnerable › Vulnerabilities

CVE-2026-17610: RAIL 802.15.4 Mux missing ACK can lead to DoS

• Severity: medium (CVSS 6.0 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-28 · updated 2026-09-08
• Weakness: CWE-404

Description

In SiSDK v2026.6.0 and earlier, high network traffic loads can cause a dropped ACK leading to a denial of service. This is only present for EFR32MG24 and EFR32MG26 devices running concurrent multiprotocol Zigbee and Thread.

Affected products

• silabs.com SiSDK: through 2026.6.0

References

• https://github.com/SiliconLabsSoftware/sisdk-release/tree/sisdk-2026.6
• https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/a45Vm000000F7VpIAK?operationContext=S1

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