synaTEE.signed.dll Out-Of-Bounds Heap Write
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Synaptics | Synaptics Fingerprint Driver | 5.1.xxx.26 to before xxx=340; 5.2.xxxx.26 to before xxxx=3541; 5.2.2xx.26 to before xx=29; 5.2.3xx.26 to before xx=25; 5.3.xxxx.26 to before xxxx=3543; 5.5.xx.1058 to before xx=44; 5.5.xx.1102 to before xx=34; 5.5.xx.1116 to before xx=14; 6.0.xx.1104 to before xx=50; 6.0.xx.1108 to before xx=31; 6.0.xx.1111 to before xx=58 | xxx=340, xxxx=3541, xx=29, xx=25, xxxx=3543, xx=44, xx=34, xx=14, xx=50, xx=31, xx=58 | Patch available | CNA |
- Synaptics Fingerprint Driver VendorSynaptics Affected 5.1.xxx.26 to before xxx=340; 5.2.xxxx.26 to before xxxx=3541; 5.2.2xx.26 to before xx=29; 5.2.3xx.26 to before xx=25; 5.3.xxxx.26 to before xxxx=3543; 5.5.xx.1058 to before xx=44; 5.5.xx.1102 to before xx=34; 5.5.xx.1116 to before xx=14; 6.0.xx.1104 to before xx=50; 6.0.xx.1108 to before xx=31; 6.0.xx.1111 to before xx=58 Fixed in xxx=340, xxxx=3541, xx=29, xx=25, xxxx=3543, xx=44, xx=34, xx=14, xx=50, xx=31, xx=58 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:* | 5.1.000.26 to before 5.1.340.26; 5.2.0000.26 to before 5.2.3541.26; 5.2.200.26 to before 5.2.229.26; 5.2.300.26 to before 5.2.325.26; 5.3.0000.26 to before 5.3.3543.26; 5.5.00.1058 to before 5.5.44.1058; 5.5.00.1102 to before 5.5.34.1102; 5.5.00.1116 to before 5.5.14.1116; 6.0.00.1111 to before 6.0.58.1111 | Vulnerable | Synaptics |
- cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:* Versions 5.1.000.26 to before 5.1.340.26; 5.2.0000.26 to before 5.2.3541.26; 5.2.200.26 to before 5.2.229.26; 5.2.300.26 to before 5.2.325.26; 5.3.0000.26 to before 5.3.3543.26; 5.5.00.1058 to before 5.5.44.1058; 5.5.00.1102 to before 5.5.34.1102; 5.5.00.1116 to before 5.5.14.1116; 6.0.00.1111 to before 6.0.58.1111 Vulnerable ·Synaptics
Remediation
- Fix · CNA Synaptics Fingerprint Driver (Synaptics) Fixed in xxx=340, xxxx=3541, xx=29, xx=25, xxxx=3543, xx=44, xx=34, xx=14, xx=50, xx=31, xx=58
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3675
- 2026-10-03 Alias added: GHSA-mqp4-mr97-536g
References
More Synaptics Fingerprint Driver vulnerabilities
- TI-2023-05940 Encryption key derived from static host information CVSS 3.1MEDIUM 5.2
Sources
- CVE-2021-3675 · CVE Program
- CVE-2021-3675 · NVD
- FIRST EPSS
- GHSA-mqp4-mr97-536g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences