CVE-2023-5447: Use-After-Free in Service for Hardware Support App for Fingerprint Driver

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-14 · updated 2026-06-17
Weakness: CWE-414

Description

Missing lock check in SynHsaService may create a use-after-free condition which causes abnormal termination of the service, resulting in denial of service for the Synaptics Hardware Support App.

Affected products

Synaptics Fingerprint Driver: from 6.0.0.1105 before 6.0.64.1105; from 6.0.0.1136 before 6.0.39.1136 — fixed in 6.0.39.1136, 6.0.64.1105

How to fix

Upgrade to a fixed version: Synaptics Fingerprint Driver 6.0.39.1136, 6.0.64.1105. Check the vendor advisory for mitigations.

References

https://www.synaptics.com/sites/default/files/2023-10/fingerprint-driver-HSAService-security-brief-2023-10-13.pdf
https://www.synaptics.com/sites/default/files/2023-10/fingerprint-driver-HSAService-security-brief-2023-10-13.pdf

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