Samsung Devices up to SMR Aug-2026 Release libsmsd.so input validation
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.4 | $0-$5k | 1.14+ |
Summary
A vulnerability was found in Samsung Devices. It has been declared as very critical. This issue affects some unknown processing of the file libsmsd.so. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2026-21067. The attack requires local access. There is no available exploit.
Details
A vulnerability was found in Samsung Devices. It has been declared as very critical. This vulnerability affects some unknown processing of the file libsmsd.so. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
Improper input validation in libsmsd.so prior to SMR Aug-2026 Release 1 allows local attackers to write out-of-bounds memory.
The advisory is available at security.samsungmobile.com. This vulnerability was named CVE-2026-21067 since 12/11/2025. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/10/2026).
Upgrading to version SMR Aug-2026 Release 1 eliminates this vulnerability.
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Product
Vendor
Name
Version
- 4.1.01.0
- 7
- 8
- 9.0
- 10.0
- 11.0
- 2017-11-03
- 2020-04-02
- Go(8.1)
- Go(9.0)
- L
- L(5.1)
- L(5.x)
- M
- M(6.0)
- M(6.x)
- N
- N(7.0)
- N(7.1)
- N(7.x)
- O(8.0)
- O(8.1)
- O(8.X)
- O(8.x)
- P(9.0)
- P(9.x)
- Q(10.0)
- Q(10.x)
- R(11.0)
- SMR Aug-2026 Release
License
Website
- Vendor: https://www.samsung.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.8VulDB Meta Temp Score: 8.4
VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Input validationCWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
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: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: Devices SMR Aug-2026 Release 1
Timeline
12/11/2025 CVE reserved08/10/2026 Advisory disclosed
08/10/2026 VulDB entry created
08/10/2026 VulDB entry last update
Sources
Vendor: samsung.comAdvisory: security.samsungmobile.com
Status: Confirmed
CVE: CVE-2026-21067 (🔒)
GCVE (CVE): GCVE-0-2026-21067
GCVE (VulDB): GCVE-100-387358
Entry
Created: 08/10/2026 10:37Changes: 08/10/2026 10:37 (54)
Complete: 🔍
Cache ID: 216::103
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