CVE-2025-3873

MEDIUM EPSS 21.8%

Published Jul 25, 202511mo ago · Modified Jun 17, 20262w ago

6.0 CVSS 4.0

Medium

Published Jul 25, 2025 11mo ago

Last Modified Jun 17, 2026 2w ago

Description

The following APIs for the Silcon Labs SiWx91x prior to vesion 3.4.0 failed to check the size of the output buffer of the caller which could lead to data corruption on the host (Cortex-M4) application. sl_si91x_aes sl_si91x_gcm sl_si91x_ccm sl_si91x_sha

CVSS Details

Base Score

6.0

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity High

Privileges Required Low

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

21.8% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

References 2

community.silabs.com https://community.silabs.com/068Vm00000SSlOu
docs.silabs.com https://docs.silabs.com/wiseconnect/latest/sisdk-wifi-release-notes/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.