CVE-2025-3873 is a medium-severity vulnerability (CVSS 6.0) affecting Silicon Labs SiWx91x devices prior to version 3.4.0. Specifically, the sl_si91x_aes, sl_si91x_gcm, sl_si91x_ccm, and sl_si91x_sha APIs fail to validate output buffer sizes, leading to potential data corruption on the host Cortex-M4 application. Exploitation requires low privileges and high attack complexity, with a high impact on integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Silabs.Com | WiseConnect | >= 3.0.0, < 3.4.0CNA affecteddefault unaffected |
CVSS version used by this source: 4.0
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
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.