CVE-2021-3675: Synaptics Fingerprint Driver

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper Input Validation vulnerability in synaTEE.signed.dll of Synaptics Fingerprint Driver allows a local authorized attacker to overwrite a heap tag, with potential loss of confidentiality. This issue affects: Synaptics Synaptics Fingerprint Driver 5.1.xxx.26 versions prior to xxx=340 on x86/64; 5.2.xxxx.26 versions prior to xxxx=3541 on x86/64; 5.2.2xx.26 versions prior to xx=29 on x86/64; 5.2.3xx.26 versions prior to xx=25 on x86/64; 5.3.xxxx.26 versions prior to xxxx=3543 on x86/64; 5.5.xx.1058 versions prior to xx=44 on x86/64; 5.5.xx.1102 versions prior to xx=34 on x86/64; 5.5.xx.1116 versions prior to xx=14 on x86/64; 6.0.xx.1104 versions prior to xx=50 on x86/64; 6.0.xx.1108 versions prior to xx=31 on x86/64; 6.0.xx.1111 versions prior to xx=58 on x86/64.

Affected products

• Synaptics Fingerprint Driver: from 5.1.000.26, before 5.1.340.26 (fixed in 5.1.340.26); from 5.2.0000.26, before 5.2.3541.26 (fixed in 5.2.3541.26); from 5.2.200.26, before 5.2.229.26 (fixed in 5.2.229.26); from 5.2.300.26, before 5.2.325.26 (fixed in 5.2.325.26); from 5.3.0000.26, before 5.3.3543.26 (fixed in 5.3.3543.26); from 5.5.00.1058, before 5.5.44.1058 (fixed in 5.5.44.1058); …

Published 2022-06-16. Last modified 2026-06-17.