CVE-2022-33244Network attack vector

Service interruption via MIB and SIB assertion

Published Mar 7, 2023 · Updated Aug 3, 2024

Reachable assertion in Qualcomm Snapdragon modem firmware allows remote attackers to interrupt service during MIB reception and SIB timeout. The modem processes network-supplied system information through the MIB and SIB path and reaches an assertion when reception coincides with the timeout. No authentication or user interaction is required, and the documented consequence is a transient modem interruption rather than data access or code execution.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reachable assertion in Qualcomm Snapdragon modem firmware allows remote attackers to interrupt service during MIB reception and SIB timeout. The modem processes network-supplied system information through the MIB and SIB path and reaches an assertion when reception coincides with the timeout. No authentication or user interaction is required, and the documented consequence is a transient modem interruption rather than data access or code execution.

The record

CVE
CVE-2022-33244
Published
Mar 7, 2023
Updated
Aug 3, 2024
Vendor
Qualcomm
Product
Qualcomm WCD9375 Firmware
Classifications
CWE-617, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 7, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 WCD9375 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 4 Gen 1 Firmwareversion=*
Qualcomm · SA515M Firmwareversion=*
Qualcomm · WSA8810 Firmwareversion=*
Qualcomm · QCA8337 Firmwareversion=*
Qualcomm · QCA8081 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 695 Firmwareversion=*
Qualcomm · Qualcomm WCN6855 Firmwareversion=*
Qualcomm · QCM6490 Firmwareversion=*
Qualcomm · Qualcomm SM7325P Firmwareversion=*
Qualcomm · Snapdragonversion=AR8035; version=QCA6391; version=QCA8081; version=QCA8337; version=QCM6490; version=QCN6024; version=QCN9024; version=QCS6490; version=SA515M; version=SD480; version=SD695; version=SD778G; version=SD780G; version=SD888 5G; version=SD 8 Gen1 5G; version=SDX57M; version=SDX65; version=SDX70M; version=SM7325P; version=Snapdragon 4 Gen 1; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCN3988; version=WCN3991; version=WCN3998; version=WCN6740; version=WCN6750; version=WCN6850; version=WCN6851; version=WCN6855; version=WCN6856; version=WCN7850; version=WCN7851; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8835
Qualcomm · Qualcomm WCN6856 Firmwareversion=*
Qualcomm · WCN7850 Firmwareversion=*
Qualcomm · QCS6490 Firmwareversion=*
Qualcomm · WCN7851 Firmwareversion=*
Qualcomm · Snapdragon 888 5G Firmwareversion=*
Qualcomm · WCD9370 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 780G Firmwareversion=*
Qualcomm · Qualcomm SDX65 Firmwareversion=*
Qualcomm · SD 8 Gen1 5G Firmwareversion=*
Qualcomm · WCN3988 Firmwareversion=*
Qualcomm · WCD9380 Firmwareversion=*
Qualcomm · Qualcomm WCN6740 Firmwareversion=*
Qualcomm · Qualcomm WCN3991 Firmwareversion=*
Qualcomm · SD778G Firmwareversion=*
Qualcomm · QCN6024 Firmwareversion=*
Qualcomm · Qualcomm SDX57M Firmwareversion=*
Qualcomm · AR8035 Firmwareversion=*
Qualcomm · QCN9024 Firmwareversion=*
Qualcomm · Qualcomm WCN6750 Firmwareversion=*
Qualcomm · Qualcomm WCN6851 Firmwareversion=*
Qualcomm · WSA8830 Firmwareversion=*
Qualcomm · QCA6391 Firmwareversion=*
Qualcomm · WCD9385 Firmwareversion=*
Qualcomm · Qualcomm WCN6850 Firmwareversion=*
Qualcomm · WSA8835 Firmwareversion=*
Qualcomm · Qualcomm WCN3998 Firmwareversion=*
Qualcomm · SD480 Firmwareversion=*
Qualcomm · WSA8815 Firmwareversion=*
Qualcomm · Qualcomm SDX70M Firmwareversion=*

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 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-617Reachable Assertion
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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