CVE-2025-2838 — MEDIUM (6.5)

Vulnerability Description

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.

CVSS Score

6.5

MEDIUM

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Silabs	Gecko Os	1.0.46

Related Weaknesses (CWE)

CWE-835

References

https://community.silabs.com/a45Vm0000000AtpPermissions Required
https://www.zerodayinitiative.com/advisories/ZDI-24-872/Third Party Advisory

FAQ

What is CVE-2025-2838?

CVE-2025-2838 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 in...

How severe is CVE-2025-2838?

CVE-2025-2838 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-2838?

Check the references section above for vendor advisories and patch information. Affected products include: Silabs Gecko Os.