CVE-2025-47395

Transient denial of service via WLAN element over-read

Published Jan 6, 2026 · Updated Jan 6, 2026

Buffer over-read in Qualcomm Snapdragon WCN7861 WLAN firmware allows remote attackers to interrupt service with a crafted management frame. The parser reads beyond the available data while handling a Vendor Specific Information Element; Qualcomm has not identified the affected routine. An unauthenticated attacker within adjacent WLAN range can trigger a transient service interruption without user interaction, with no reported data exposure or modification.

CVSS severity6.5
Medium
EPSS probability0.11%
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 WCN7861 WLAN firmware allows remote attackers to interrupt service with a crafted management frame. The parser reads beyond the available data while handling a Vendor Specific Information Element; Qualcomm has not identified the affected routine. An unauthenticated attacker within adjacent WLAN range can trigger a transient service interruption without user interaction, with no reported data exposure or modification.

The record

CVE
CVE-2025-47395
Published
Jan 6, 2026
Updated
Jan 6, 2026
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-126, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 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=WCN7861

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=WCN7861

Published CVSS scores

6.5Qualcomm, Inc.CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-126Buffer Over-read
T1499.004Application or System Exploitation

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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