Vulnerability in Silabs Gecko OS
CVE-2025-2838
Silicon Labs Gecko OS DNS Response Processing Infinite Loop Denial-of-Service Vulnerability. This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Silicon Labs Gecko OS. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of DNS responses. The issue results from a logic error that can lead to an infinite loop. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-23392.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (15.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Silabs Gecko OS — versions 1.0.46
- Silicon Labs Gecko OS — versions 1.0.46
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-24-872/ (x_research-advisory, Third Party Advisory)
- community.silabs.com/a45Vm0000000Atp (Permissions Required, vendor-advisory)
Frequently asked questions
- What is CVE-2025-2838?
- CVE-2025-2838 is a medium-severity vulnerability in Silabs Gecko OS, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 6.5/10. Published 2025-03-26.
- How severe is CVE-2025-2838?
- Medium severity. CVSS v3 base score is 6.5 out of 10.