VDB-434398 · CVE-2026-56971 · GCVE-0-2026-56971

Google Android AudioSession AudioSession.cpp SendInternalEvent double free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.5	$25k-$100k	0.00+

Summaryinfo

A vulnerability was found in Google Android. It has been declared as very critical. This affects the function AudioSession::SendInternalEvent of the file AudioSession.cpp of the component AudioSession. Executing a manipulation can lead to double free. This vulnerability appears as CVE-2026-56971. The attack may be performed from remote. There is no available exploit. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability has been found in Google Android (version now known) and classified as very critical. This vulnerability affects the function AudioSession::SendInternalEvent of the file AudioSession.cpp of the component AudioSession. The manipulation with an unknown input leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In AudioSession::SendInternalEvent of AudioSession.cpp, there is a possible Double Free due to a logic error in the code. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

The advisory is available at source.android.com. This vulnerability was named CVE-2026-56971 since 06/23/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $25k-$100k at the moment (estimation calculated on 11/10/2026).

Applying a patch is able to eliminate this problem.

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Productinfo

Type

Smartphone Operating System

Vendor

Google

Name

Android

License

free

Website

Vendor: https://www.google.com/

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/23/2026 CVE reserved
11/10/2026 +140 days Advisory disclosed
11/10/2026 +0 days VulDB entry created
11/10/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: google.com

Advisory: source.android.com
Status: Confirmed

CNA: Google_Devices
CVE: CVE-2026-56971 (🔒)

GCVE (CVE): GCVE-0-2026-56971
GCVE (VulDB): GCVE-100-434398
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 11/10/2026 20:52
Changes: 11/10/2026 20:52 (58)
Complete: 🔍
Cache ID: 216::103