CVE-2021-3675

Name: CVE-2021-3675
Creator: NVD / NIST
Published: 2022-06-16T17:15:07.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2021-3675 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS Probability

0.26%

17.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Synaptics	Fingerprint Driver	>= 5.1.000.26, < 5.1.340.26
Synaptics	Fingerprint Driver	>= 5.2.0000.26, < 5.2.3541.26
Synaptics	Fingerprint Driver	>= 5.2.200.26, < 5.2.229.26
Synaptics	Fingerprint Driver	>= 5.2.300.26, < 5.2.325.26
Synaptics	Fingerprint Driver	>= 5.3.0000.26, < 5.3.3543.26
Synaptics	Fingerprint Driver	>= 5.5.00.1058, < 5.5.44.1058
Synaptics	Fingerprint Driver	>= 5.5.00.1102, < 5.5.34.1102
Synaptics	Fingerprint Driver	>= 5.5.00.1116, < 5.5.14.1116
Synaptics	Fingerprint Driver	>= 6.0.00.1111, < 6.0.58.1111

References

https://support.hp.com/us-en/document/ish_6411153-6411191-16/hpsbhf03797Patch, Third Party Advisory
https://support.lenovo.com/us/en/product_security/LEN-68054Third Party Advisory
https://synaptics.com/sites/default/files/2022-06/fingerprint-driver-SGX-security-brief-2022-06-14.pdfVendor Advisory
https://support.hp.com/us-en/document/ish_6411153-6411191-16/hpsbhf03797Patch, Third Party Advisory
https://support.lenovo.com/us/en/product_security/LEN-68054Third Party Advisory
https://synaptics.com/sites/default/files/2022-06/fingerprint-driver-SGX-security-brief-2022-06-14.pdfVendor Advisory

Timeline

Published: Jun 16, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3675?

How severe is CVE-2021-3675?

CVE-2021-3675 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3675?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-3675?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST