Samsung Devices Fingerprint Trustlet out-of-bounds write
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.7 | $0-$5k | 0.00 |
Summary
A vulnerability identified as critical has been detected in Samsung Devices. This impacts an unknown function of the component Fingerprint Trustlet. Performing a manipulation results in out-of-bounds write. This vulnerability was named CVE-2025-21071. The attack needs to be approached locally. There is no available exploit.
Details
A vulnerability classified as problematic has been found in Samsung Devices (affected version not known). This affects some unknown functionality of the component Fingerprint Trustlet. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
Out-of-bounds write in handling opcode in fingerprint trustlet prior to SMR Nov-2025 Release 1 allows local privileged attackers to write out-of-bounds memory.
It is possible to read the advisory at security.samsungmobile.com. This vulnerability is uniquely identified as CVE-2025-21071 since 11/06/2024. The exploitability is told to be difficult. Attacking locally is a requirement. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not publicly available.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
License
Website
- Vendor: https://www.samsung.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.7VulDB Meta Temp Score: 4.7
VulDB Base Score: 3.9
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 4.4
NVD Vector: 🔒
CNA Base Score: 5.7
CNA Vector (SamsungMobile): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Out-of-bounds writeCWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
11/06/2024 CVE reserved11/05/2025 Advisory disclosed
11/05/2025 VulDB entry created
11/08/2025 VulDB entry last update
Sources
Vendor: samsung.comAdvisory: security.samsungmobile.com
Status: Confirmed
CVE: CVE-2025-21071 (🔒)
GCVE (CVE): GCVE-0-2025-21071
GCVE (VulDB): GCVE-100-331263
Entry
Created: 11/05/2025 08:01Updated: 11/08/2025 13:27
Changes: 11/05/2025 08:01 (61), 11/08/2025 13:27 (11)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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