CVE-2020-3652Network attack vector

Memory disclosure via unchecked WLAN frame length

Published Apr 16, 2020 · Updated Aug 4, 2024

An out-of-bounds read in Qualcomm Snapdragon Compute and Connectivity WLAN drivers allows remote attackers to read memory via crafted Wi-Fi frames. The athw10x.sys Windows x86 driver processes a received variable-length value without validating its length, causing the buffer over-read. The flaw affects MSM8998, QCA6390, SC7180, SC8180X, and SDM850, requires no authentication or user interaction, and has no documented data-modification impact.

CVSS severity9.1
Critical
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in Qualcomm Snapdragon Compute and Connectivity WLAN drivers allows remote attackers to read memory via crafted Wi-Fi frames. The athw10x.sys Windows x86 driver processes a received variable-length value without validating its length, causing the buffer over-read. The flaw affects MSM8998, QCA6390, SC7180, SC8180X, and SDM850, requires no authentication or user interaction, and has no documented data-modification impact.

The record

CVE
CVE-2020-3652
Published
Apr 16, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, CWE-20
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 16, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.4NIST NVDAV:N/AC:L/Au:N/C:C/I:N/A:C

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.

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No observations available

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

Weakness, pattern, technique

CWE-125Out-of-bounds Read
CWE-20Improper Input Validation

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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