VDB-303672 · CVE-2025-21423 · GCVE-0-2025-21423

Qualcomm Snapdragon Compute/Snapdragon Industrial IOT up to WSA8845H EnableTestMode array index

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.
7.6	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Qualcomm Snapdragon Compute and Snapdragon Industrial IOT. The affected element is the function EnableTestMode. The manipulation results in array index. This vulnerability is reported as CVE-2025-21423. The attack requires a local approach. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Qualcomm Snapdragon Compute and Snapdragon Industrial IOT. Affected is the function EnableTestMode. The manipulation with an unknown input leads to a array index vulnerability. CWE is classifying the issue as CWE-129. The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Memory corruption occurs when handling client calls to EnableTestMode through an Escape call.

The advisory is shared for download at docs.qualcomm.com. This vulnerability is traded as CVE-2025-21423 since 12/18/2024. The exploitability is told to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/19/2025).

Upgrading eliminates this vulnerability.

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Productinfo

Type

Chip Software

Vendor

Qualcomm

Name

Version

License

commercial

Website

Vendor: https://www.qualcomm.com/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Array index
CWE: CWE-129 / 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 Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/18/2024 🔍
04/07/2025 +109 days 🔍
04/07/2025 +0 days 🔍
08/19/2025 +134 days 🔍

Sourcesinfo

Vendor: qualcomm.com

Advisory: docs.qualcomm.com
Status: Confirmed

CVE: CVE-2025-21423 (🔍)
GCVE (CVE): GCVE-0-2025-21423
GCVE (VulDB): GCVE-100-303672

Entryinfo

Created: 04/07/2025 12:50
Updated: 08/19/2025 20:18
Changes: 04/07/2025 12:50 (63), 08/19/2025 20:18 (1)
Complete: 🔍
Cache ID: 216::103