CVE-2021-3675 json
synaTEE.signed.dll Out-Of-Bounds Heap Write
published 2022-06-16 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26967
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Synaptics Synaptics Fingerprint Driver xx=14, xx=25, xx=29, xx=31, xx=34, xx=44, xx=50, xx=58, xxx=340, xxxx=3541, xxxx=3543
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
| NVD | 2.0 | 3.6 | AV:L/AC:L/Au:N/C:P/I:N/A:P |
Affected products
- Synaptics Synaptics Fingerprint Driver
Classification
References
-
support.hp.com
/us-en/document/ish_6411153-6411191-16/hpsbhf03797
patch, third-party-advisory
-
synaptics.com
/sites/default/files/2022-06/fingerprint-driver-SGX-security-brief-2022-06-14.pdf
vendor-advisory
-
support.lenovo.com
/us/en/product_security/LEN-68054
third-party-advisory
Sources
- CVE List CVE-2021-3675
- NVD CVE-2021-3675
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