Low severity · published Feb 20, 2026
CVE-2025-14055
Integer underflow in Secure NCP host
2.4
CVSS
0.2%
EPSS
No
On KEV
Description
An integer underflow vulnerability in Silicon Labs Secure NCP host implementation allows a buffer overread via a specially crafted packet.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Simplicity SDK, Gecko SDK · silabs.com
2025.12.0 through 2025.12.1; through 2025.6.2 · source: vendor