Google Android bigo.c bigo_worker_thread use after free
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.1 | $5k-$25k | 0.00 |
Summary
A vulnerability, which was classified as critical, was found in Google Android. This vulnerability affects the function bigo_worker_thread of the file private/google-modules/video/gchips/bigo.c. Such manipulation leads to use after free.
This vulnerability is documented as CVE-2025-36934. The attack needs to be performed locally. There is not any exploit available.
It is best practice to apply a patch to resolve this issue.
Details
A vulnerability was found in Google Android (affected version not known). It has been rated as critical. Affected by this issue is the function bigo_worker_thread of the file private/google-modules/video/gchips/bigo.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:
In bigo_worker_thread of private/google-modules/video/gchips/bigo.c, there is a possible use after free 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.
The advisory is available at source.android.com. This vulnerability is handled as CVE-2025-36934 since 04/16/2025. The exploitation is known 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 $5k-$25k at the moment (estimation calculated on 12/12/2025).
Applying a patch is able to eliminate this problem.
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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: 5.3VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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 |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / 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: PatchStatus: 🔍
0-Day Time: 🔒
Timeline
04/16/2025 CVE reserved12/11/2025 VulDB entry created
12/12/2025 Advisory disclosed
12/12/2025 VulDB entry last update
Sources
Vendor: google.comAdvisory: source.android.com
Status: Confirmed
CVE: CVE-2025-36934 (🔒)
GCVE (CVE): GCVE-0-2025-36934
GCVE (VulDB): GCVE-100-336086
scip Labs: https://www.scip.ch/en/?labs.20150917
Entry
Created: 12/12/2025 00:40Changes: 12/12/2025 00:40 (56)
Complete: 🔍
Cache ID: 216::103
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