CVE-2023-28543Network attack vector

Memory corruption via malformed DLC model

Published Sep 5, 2023 · Updated Feb 27, 2025

Out-of-bounds read in Qualcomm Snapdragon SNPE affects SD855, SD845, QCS605, and QCS405 and allows remote attackers to corrupt memory. The proprietary SNPE library reads beyond a DLC model's allocated bounds when it processes malformed model data loaded from an untrusted source. Exploitation requires delivery and loading of a crafted DLC model; Qualcomm reports confidentiality, integrity, and availability impact but discloses no narrower consequence.

CVSS severity8.1
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Qualcomm Snapdragon SNPE affects SD855, SD845, QCS605, and QCS405 and allows remote attackers to corrupt memory. The proprietary SNPE library reads beyond a DLC model's allocated bounds when it processes malformed model data loaded from an untrusted source. Exploitation requires delivery and loading of a crafted DLC model; Qualcomm reports confidentiality, integrity, and availability impact but discloses no narrower consequence.

The record

CVE
CVE-2023-28543
Published
Sep 5, 2023
Updated
Feb 27, 2025
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 2025Record 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=QCS405
  2. Affected versionversion=QCS605
  3. Affected versionversion=SD845
  4. Affected versionversion=SD855

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=QCS405; version=QCS605; version=SD845; version=SD855

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1Qualcomm, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds 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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