| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.3 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Google Android and classified as critical. Impacted is an unknown function of the component Kernel. The manipulation leads to race condition. This vulnerability is documented as CVE-2021-39660. The attack needs to be performed locally. There is not any exploit available. It is suggested to install a patch to address this issue.
Details
A vulnerability, which was classified as critical, has been found in Google Android (Smartphone Operating System) (the affected version unknown). This issue affects an unknown part of the component Kernel. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
In TBD of TBD, there is a possible way to archive arbitrary code execution in kernel due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-254742984
The weakness was released 12/13/2022 as A-254742984. The advisory is shared at source.android.com. The identification of this vulnerability is CVE-2021-39660 since 08/23/2021. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/23/2025). It is expected to see the exploit prices for this product increasing in the near future.
Applying a patch is able to eliminate this problem.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.google.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.4VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.0
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Race conditionCWE: CWE-362
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: PatchStatus: 🔍
0-Day Time: 🔍
Timeline
08/23/2021 🔍12/13/2022 🔍
12/13/2022 🔍
04/23/2025 🔍
Sources
Vendor: google.comAdvisory: A-254742984
Status: Confirmed
CVE: CVE-2021-39660 (🔍)
GCVE (CVE): GCVE-0-2021-39660
GCVE (VulDB): GCVE-100-215561
scip Labs: https://www.scip.ch/en/?labs.20150917
Entry
Created: 12/13/2022 21:05Updated: 04/23/2025 05:58
Changes: 12/13/2022 21:05 (40), 01/08/2023 12:55 (11), 04/23/2025 05:58 (16)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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