CVE-2025-47400

Local data exposure via unchecked buffer copy

Published Apr 6, 2026 · Updated Apr 6, 2026

Buffer over-read in Qualcomm Snapdragon Computer Vision firmware allows local users to read or modify protected data during cryptographic processing. The component copies cryptographic data into a destination buffer without validating the destination size, so the copy can read beyond the intended boundary. Low privileges and local access are required; no user interaction is needed, and no service interruption is reported.

CVSS severity7.1
High
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer over-read in Qualcomm Snapdragon Computer Vision firmware allows local users to read or modify protected data during cryptographic processing. The component copies cryptographic data into a destination buffer without validating the destination size, so the copy can read beyond the intended boundary. Low privileges and local access are required; no user interaction is needed, and no service interruption is reported.

The record

CVE
CVE-2025-47400
Published
Apr 6, 2026
Updated
Apr 6, 2026
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-126
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Pandeiro
  2. Affected versionversion=Snapdragon 8 Elite Gen 5
  3. Affected versionversion=SW6100
  4. Affected versionversion=SW6100P
  5. Affected versionversion=Themisto
  6. Affected versionversion=WCD9395
  7. Affected versionversion=WCN7860
  8. Affected versionversion=WCN7861
  9. Affected versionversion=WSA8840
  10. Affected versionversion=WSA8845
  11. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=Pandeiro; version=Snapdragon 8 Elite Gen 5; version=SW6100; version=SW6100P; version=Themisto; version=WCD9395; version=WCN7860; version=WCN7861; version=WSA8840; version=WSA8845; version=WSA8845H

Published CVSS scores

7.1Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-126Buffer Over-read

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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