CVE-2023-43535

Memory corruption via negative display array index

Published Feb 6, 2024 · Updated Jun 13, 2025

Memory corruption in Qualcomm Snapdragon Display on listed chipsets allows local users to corrupt memory via negative display IDs. The DISPLAYESCAPE event handler fails to reject negative display identifiers before using them as array indexes. Reachability requires local execution without prior privileges or user interaction, and the resulting corruption can expose or alter data or interrupt the device.

CVSS severity8.4
High
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

Memory corruption in Qualcomm Snapdragon Display on listed chipsets allows local users to corrupt memory via negative display IDs. The DISPLAYESCAPE event handler fails to reject negative display identifiers before using them as array indexes. Reachability requires local execution without prior privileges or user interaction, and the resulting corruption can expose or alter data or interrupt the device.

The record

CVE
CVE-2023-43535
Published
Feb 6, 2024
Updated
Jun 13, 2025
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-129
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 13, 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=FastConnect 6700
  2. Affected versionversion=FastConnect 6900
  3. Affected versionversion=FastConnect 7800
  4. Affected versionversion=SC8380XP
  5. Affected versionversion=Snapdragon 7c+ Gen 3 Compute
  6. Affected versionversion=Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB, BB)
  7. Affected versionversion=WCD9380
  8. Affected versionversion=WCD9385
  9. Affected versionversion=WSA8830
  10. Affected versionversion=WSA8835
  11. Affected versionversion=WSA8840
  12. Affected versionversion=WSA8845
  13. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=FastConnect 6700; version=FastConnect 6900; version=FastConnect 7800; version=SC8380XP; version=Snapdragon 7c+ Gen 3 Compute; version=Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB, BB); version=WCD9380; version=WCD9385; version=WSA8830; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H

Published CVSS scores

8.4Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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.

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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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-129Improper Validation of Array Index

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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