Qualcomm Snapdragon Auto/Snapdragon Mobile/Snapdragon WBC up to WCD9340 fastrpc Session buffer over-read

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Qualcomm Snapdragon Auto, Snapdragon Mobile and Snapdragon WBC. This vulnerability affects unknown code of the component fastrpc Session Handler. This manipulation causes buffer over-read. This vulnerability appears as CVE-2025-21457. The attack requires local access. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Qualcomm Snapdragon Auto, Snapdragon Mobile and Snapdragon WBC. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component fastrpc Session Handler. The manipulation with an unknown input leads to a buffer over-read vulnerability. The CWE definition for the vulnerability is CWE-126. The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Information disclosure while opening a fastrpc session when domain is not sanitized.

It is possible to read the advisory at docs.qualcomm.com. This vulnerability is known as CVE-2025-21457 since 12/18/2024. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for 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: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (qualcomm): 🔒

CVSSv2info

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

Exploitinginfo

Class: Buffer over-read
CWE: CWE-126 / 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
08/20/2025 +14 days VulDB entry last update

Sourcesinfo

Vendor: qualcomm.com

Advisory: docs.qualcomm.com
Status: Confirmed

CVE: CVE-2025-21457 (🔒)
GCVE (CVE): GCVE-0-2025-21457
GCVE (VulDB): GCVE-100-319003

Entryinfo

Created: 08/06/2025 10:04
Updated: 08/20/2025 03:19
Changes: 08/06/2025 10:04 (63), 08/20/2025 03:19 (1)
Complete: 🔍
Cache ID: 216::103

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