Vulnerability · Published Mar 26, 2025 · Assigned by zdi

CVE-2025-2838Silicon Labs Gecko OS DNS Response Processing Infinite Loop Denial-of-Service Vulnerability

Medium 6.5

In plain English

A medium-severity infinite loop in Gecko OS from Silicon Labs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 3.0)6.5Medium

Exploit odds (30 days)0.3%top 81.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Silicon Labs	Gecko OS	1.0.46

Weakness: CWE-835 · Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

ZDI-24-872 x_research-advisory
vendor-provided URL vendor-advisory