CVE-2022-33303

Kernel DoS via malformed Gunyah messages

Published Jun 6, 2023 · Updated Aug 3, 2024

Uncontrolled resource consumption in the Snapdragon Linux kernel allows local users to cause a transient service interruption. The Gunyah Resource Manager message queue accepts malformed messages that drive kernel resource consumption without an enforced bound. Low-privileged local access is required, and the documented consequence is limited to temporary loss of availability.

CVSS severity5.5
Medium
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

Uncontrolled resource consumption in the Snapdragon Linux kernel allows local users to cause a transient service interruption. The Gunyah Resource Manager message queue accepts malformed messages that drive kernel resource consumption without an enforced bound. Low-privileged local access is required, and the documented consequence is limited to temporary loss of availability.

The record

CVE
CVE-2022-33303
Published
Jun 6, 2023
Updated
Aug 3, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-400, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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

  1. Affected versionversion=FastConnect 6900
  2. Affected versionversion=FastConnect 7800
  3. Affected versionversion=QCA6574AU
  4. Affected versionversion=QCA6595AU
  5. Affected versionversion=QCA6696
  6. Affected versionversion=SA6145P
  7. Affected versionversion=SA6150P
  8. Affected versionversion=SA6155P
  9. Affected versionversion=SA8145P
  10. Affected versionversion=SA8150P
  11. Affected versionversion=SA8155P
  12. Affected versionversion=SA8195P
  13. Affected versionversion=Snapdragon 888 5G Mobile Platform
  14. Affected versionversion=Snapdragon 888+ 5G Mobile Platform (SM8350-AC)
  15. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  16. Affected versionversion=WCD9380
  17. Affected versionversion=WCD9385
  18. Affected versionversion=WSA8830
  19. Affected versionversion=WSA8835

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=FastConnect 6900; version=FastConnect 7800; version=QCA6574AU; version=QCA6595AU; version=QCA6696; version=SA6145P; version=SA6150P; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155P; version=SA8195P; version=Snapdragon 888 5G Mobile Platform; version=Snapdragon 888+ 5G Mobile Platform (SM8350-AC); version=Snapdragon 8 Gen 1 Mobile Platform; version=WCD9380; version=WCD9385; version=WSA8830; version=WSA8835

Published CVSS scores

5.5Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

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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