---
id: CVE-2025-47400
title: >-
  Cryptographic issue while copying data to a destination buffer without
  validating its size.
summary: >-
  Cryptographic issue while copying data to a destination buffer without
  validating its size.
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-126
vendor: qualcomm
product: pandeiro_firmware
affected:
  - pandeiro_firmware
  - snapdragon_8_elite_gen_5_firmware
  - sw6100_firmware
  - sw6100p_firmware
  - themisto_firmware
  - wcd9395_firmware
  - wcn7860_firmware
  - wcn7861_firmware
  - wsa8840_firmware
  - wsa8845_firmware
  - wsa8845h_firmware
published: '2026-04-06'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T22:10:00.273'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-47400'
references:
  - url: >-
      https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2026-bulletin.html
    label: product-security@qualcomm.com
tags:
  - nvd
epss: 0.00095
epssPercentile: 0.00587
ingestedAt: '2026-09-30T22:27:27.747Z'
---

## Overview

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

## Affected

- `pandeiro_firmware`
- `snapdragon_8_elite_gen_5_firmware`
- `sw6100_firmware`
- `sw6100p_firmware`
- `themisto_firmware`
- `wcd9395_firmware`
- `wcn7860_firmware`
- `wcn7861_firmware`
- `wsa8840_firmware`
- `wsa8845_firmware`
- `wsa8845h_firmware`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.