CVE-2022-33304Network attack vector

Transient modem denial of service via packet pullup

Published May 2, 2023 · Updated Aug 3, 2024

NULL pointer dereference in Qualcomm Snapdragon modem firmware allows remote attackers to interrupt service via received TCP or UDP packets. The modem packet-pullup path dereferences a null pointer while consolidating received TCP or UDP packet data. No authentication or user interaction is required, and the reported consequence is a transient modem interruption rather than data exposure or modification.

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

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Summary

What happened

NULL pointer dereference in Qualcomm Snapdragon modem firmware allows remote attackers to interrupt service via received TCP or UDP packets. The modem packet-pullup path dereferences a null pointer while consolidating received TCP or UDP packet data. No authentication or user interaction is required, and the reported consequence is a transient modem interruption rather than data exposure or modification.

The record

CVE
CVE-2022-33304
Published
May 2, 2023
Updated
Aug 3, 2024
Vendor
Qualcomm
Product
Qualcomm Snapdragon 1200 Wearable Platform Firmware
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 2, 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=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Qualcomm Snapdragon 1200 Wearable Platform Firmwareversion=*
Qualcomm · CSRA6620 Firmwareversion=*
Qualcomm · WSA8810 Firmwareversion=*
Qualcomm · Qualcomm WCD9306 Firmwareversion=*
Qualcomm · Qualcomm WCN3999 Firmwareversion=*
Qualcomm · FastConnect 7800 Firmwareversion=*
Qualcomm · CSRA6640 Firmwareversion=*
Qualcomm · Snapdragonversion=9205 LTE Modem; version=9206 LTE Modem; version=9207 LTE Modem; version=AR8031; version=CSRA6620; version=CSRA6640; version=FastConnect 6900; version=FastConnect 7800; version=Home Hub 100 Platform; version=MDM8207; version=QCA4004; version=QCA4024; version=QTS110; version=Smart Audio 400 Platform; version=Snapdragon 1100 Wearable Platform; version=Snapdragon 1200 Wearable Platform; version=Snapdragon AR2 Gen 1 Platform; version=Snapdragon Wear 1300 Platform; version=Snapdragon X5 LTE Modem; version=SSG2115P; version=SSG2125P; version=SXR1230P; version=SXR2230P; version=WCD9306; version=WCD9330; version=WCD9335; version=WCD9380; version=WCD9385; version=WCN3980; version=WCN3999; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835
Qualcomm · MDM9206 LTE Modem Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 1100 Wearable Platform Firmwareversion=*
Qualcomm · SXR1230P Firmwareversion=*
Qualcomm · FastConnect 6900 Firmwareversion=*
Qualcomm · SSG2125P Firmwareversion=*
Qualcomm · 9207 LTE Modem Firmwareversion=*
Qualcomm · SSG2115P Firmwareversion=*
Qualcomm · Qualcomm Smart Audio 400 Platform Firmwareversion=*
Qualcomm · AR8031 Firmwareversion=*
Qualcomm · WCD9380 Firmwareversion=*
Qualcomm · QCA4004 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon X5 LTE Modem Firmwareversion=*
Qualcomm · MDM8207 Firmwareversion=*
Qualcomm · SXR2230P Firmwareversion=*
Qualcomm · Qualcomm Snapdragon AR2 Gen 1 Platform Firmwareversion=*
Qualcomm · QCA4024 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon Wear 1300 Platform Firmwareversion=*
Qualcomm · Qualcomm QTS110 Firmwareversion=*
Qualcomm · WSA8830 Firmwareversion=*
Qualcomm · WCD9385 Firmwareversion=*
Qualcomm · WCN3980 Firmwareversion=*
Qualcomm · WSA8835 Firmwareversion=*
Qualcomm · Qualcomm WCD9335 Firmwareversion=*
Qualcomm · WSA8832 Firmwareversion=*
Qualcomm · WCD9330 Firmwareversion=*
Qualcomm · Home Hub 100 Platform Firmwareversion=*
Qualcomm · 9205 LTE Modem Firmwareversion=*
Qualcomm · WSA8815 Firmwareversion=*

Published CVSS scores

7.5QualcommCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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.

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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