CVE-2022-33223Network attack vector

Remote service interruption via chunked-packet null dereference

Published Apr 4, 2023 · Updated Aug 3, 2024

Null pointer dereference in the modem of Qualcomm Snapdragon allows remote attackers to interrupt service with an HTTP chunked packet. The modem's chunked-transfer parser dereferences a null pointer while processing a crafted incoming packet. No authentication or user interaction is required; the documented consequence is a transient modem service interruption, not data access or modification.

CVSS severity7.5
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in the modem of Qualcomm Snapdragon allows remote attackers to interrupt service with an HTTP chunked packet. The modem's chunked-transfer parser dereferences a null pointer while processing a crafted incoming packet. No authentication or user interaction is required; the documented consequence is a transient modem service interruption, not data access or modification.

The record

CVE
CVE-2022-33223
Published
Apr 4, 2023
Updated
Aug 3, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 4, 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=9205 LTE Modem
  2. Affected versionversion=9206 LTE Modem
  3. Affected versionversion=9207 LTE Modem
  4. Affected versionversion=MDM8207
  5. Affected versionversion=QCA4004
  6. Affected versionversion=QTS110
  7. Affected versionversion=Snapdragon 1100 Wearable Platform
  8. Affected versionversion=Snapdragon 1200 Wearable Platform
  9. Affected versionversion=Snapdragon Wear 1300 Platform
  10. Affected versionversion=Snapdragon X5 LTE Modem
  11. Affected versionversion=WCD9306
  12. Affected versionversion=WCD9330

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=9205 LTE Modem; version=9206 LTE Modem; version=9207 LTE Modem; version=MDM8207; version=QCA4004; version=QTS110; version=Snapdragon 1100 Wearable Platform; version=Snapdragon 1200 Wearable Platform; version=Snapdragon Wear 1300 Platform; version=Snapdragon X5 LTE Modem; version=WCD9306; version=WCD9330

Published CVSS scores

7.5Qualcomm, Inc.CVSS:3.1/AV:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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