Description
In bigo_worker_thread of bigo.c, there is a possible escalation of privilege due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Published: 2026-09-15
Score: 6.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Local Privilege Escalation
Action: Apply Patch
AI Analysis

Impact

The vulnerability resides in the bigo_worker_thread function of the bigo.c module. The race condition allows a local process to manipulate execution flow, potentially elevating its privileges to system-level execution rights. An attacker can gain full control over the affected device without requiring any user interaction, thereby compromising confidentiality, integrity, and availability.

Affected Systems

This issue affects the Android operating system on Google devices. The specific component impacted is the Bigo service within the system, and it is not tied to a particular Android version, suggesting that any device running the affected build of the Bigo service is vulnerable.

Risk and Exploitability

The CVSS score of 6.4 indicates a moderate severity. The EPSS score is less than 1%, indicating a low probability of exploitation, and the vulnerability is not listed in the CISA KEV catalog. Because the race condition does not demand user interaction, a local attacker or one with physical access could trigger it autonomously and elevate privileges to system level. Any local attacker can exploit this flaw, as it does not require prior specialized privileges.

Generated by OpenCVE AI on September 17, 2026 at 10:26 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update the device to the latest Android security patch that contains the fix for the Bigo service race condition.
  • If updating is not immediately possible, disable or uninstall the Bigo service or any associated applications that rely on it to mitigate the race condition.
  • Apply temporary configuration changes that restrict Bigo service execution rights until the patch is available.

Generated by OpenCVE AI on September 17, 2026 at 10:26 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 17 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via Race Condition in Android Bigo Service

Wed, 16 Sep 2026 00:30:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via Race Condition in Android Bigo Service

Tue, 15 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 15 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google android
Vendors & Products Google
Google android

Tue, 15 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-362
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H'}


Tue, 15 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
Description In bigo_worker_thread of bigo.c, there is a possible escalation of privilege due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Google_Devices

Published:

Updated: 2026-09-16T03:57:39.219Z

Reserved: 2026-06-23T16:08:36.835Z

Link: CVE-2026-56915

cve-icon Vulnrichment

Updated: 2026-09-15T20:11:43.456Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-15T19:17:26.567

Modified: 2026-09-16T19:24:44.153

Link: CVE-2026-56915

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-17T10:30:15Z

Weaknesses
  • CWE-362

    Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')