Qualcomm Snapdragon Auto up to WSA8835 IOCTL Command use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Qualcomm Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Mobile, Snapdragon WBC and Snapdragon Wearables. It has been classified as critical. This impacts an unknown function of the component IOCTL Command Handler. This manipulation causes use after free. The identification of this vulnerability is CVE-2025-21456. The attack can only be executed locally. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Qualcomm Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Mobile, Snapdragon WBC and Snapdragon Wearables and classified as critical. Affected by this vulnerability is an unknown code block of the component IOCTL Command Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.

The advisory is shared at docs.qualcomm.com. This vulnerability is known as CVE-2025-21456 since 12/18/2024. The exploitation appears to be easy. An attack has to be approached locally. 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 08/21/2025).

Upgrading eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (qualcomm): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: 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: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/18/2024 CVE reserved
08/06/2025 +230 days Advisory disclosed
08/06/2025 +0 days VulDB entry created
08/21/2025 +15 days VulDB entry last update

Sourcesinfo

Vendor: qualcomm.com

Advisory: docs.qualcomm.com
Status: Confirmed

CVE: CVE-2025-21456 (🔒)
GCVE (CVE): GCVE-0-2025-21456
GCVE (VulDB): GCVE-100-319009

Entryinfo

Created: 08/06/2025 10:06
Updated: 08/21/2025 05:26
Changes: 08/06/2025 10:06 (64), 08/21/2025 05:26 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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