TI-2025-02478 Aliases CVE-2025-2838 GHSA-2h59-fjvh-cg52

Infinite loop in silabs.com Gecko OS

LOW 28CWE-835Published 2025-03-26 · Updated 2025-03-27

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-835.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00262 18th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
silabs.com	Gecko OS	1.0.46	—	No fix listed	CNA

Gecko OS Vendorsilabs.com Affected 1.0.46 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:silabs:gecko_os:1.0.46:::::::*	1.0.46	Vulnerable	silabs.com

cpe:2.3:o:silabs:gecko_os:1.0.46:*:*:*:*:*:*:* Versions 1.0.46 Vulnerable ·silabs.com

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-2838
2026-10-03 Alias added: GHSA-2h59-fjvh-cg52

References

Advisory 2

TI-2024-15920 Stack-based buffer overflow in silabs.com Gecko OS CVSS 3.1HIGH 8.8
TI-2025-02477 Stack-based buffer overflow in silabs.com Gecko OS CVSS 3.0HIGH 8.8
TI-2024-16256 Silicon Labs Gecko OS http_download Stack-based Buffer Overflow CVSS 3.1HIGH 8.8
TI-2024-15948 Silicon Labs Gecko OS HTTP GET Request Handling Stack-based Buffer Overflow CVSS 3.1HIGH 8.8
TI-2024-15919 Silicon Labs Gecko OS Debug Interface Format String CVSS 3.1MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences