Buffer Overflow in Qualcomm Crypto Module Risks Data Corruption

Publication date: 2026-04-06

Last updated on: 2026-04-08

Assigner: Qualcomm, Inc.

Description

Cryptographic issue while copying data to a destination buffer without validating its size.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-04-06

Last Modified

2026-04-08

Generated

2026-07-06

AI Q&A

2026-04-06

EPSS Evaluated

2026-07-05

NVD

CVE-2025-47400

EUVD

EUVD-2025-209231

Affected Vendors & Products

Vendor	Product	Version / Range
qualcomm	pandeiro_firmware	*
qualcomm	snapdragon_8_elite_gen_5_firmware	*
qualcomm	sw6100_firmware	*
qualcomm	sw6100p_firmware	*
qualcomm	themisto_firmware	*
qualcomm	wcd9395_firmware	*
qualcomm	wcn7860_firmware	*
qualcomm	wcn7861_firmware	*
qualcomm	wsa8840_firmware	*
qualcomm	wsa8845_firmware	*
qualcomm	wsa8845h_firmware	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
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.

Attack-Flow Graph

Executive Summary

This vulnerability is a cryptographic issue that occurs when data is copied to a destination buffer without validating the size of that buffer. This means that the process does not check if the buffer is large enough to hold the data being copied, which can lead to problems such as buffer overflows.

Impact Analysis

The vulnerability can have a significant impact because it allows unauthorized access or modification of sensitive data. According to the CVSS score, it has a high impact on confidentiality and integrity, meaning attackers could potentially read or alter sensitive information. However, it requires local access with low privileges and no user interaction.

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