CVE-2022-33254Network attack vector

Transient modem interruption via crafted SIB1 message

Published Mar 7, 2023 · Updated Aug 3, 2024

Reachable assertion in Qualcomm Snapdragon modem firmware allows remote attackers to interrupt cellular service with a crafted SIB1 message. The modem processes an untrusted SIB1 broadcast into an assertion path, terminating the affected modem operation instead of rejecting the message. Exploitation requires control of cellular network signaling or a rogue base station, and the documented consequence is a transient service interruption.

CVSS severity7.5

High

EPSS probability0.41%

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

The record

CVE: CVE-2022-33254
Published: Mar 7, 2023
Updated: Aug 3, 2024

Vendor: Qualcomm
Product: Qualcomm SDX55M Firmware
Classifications: CWE-617, T1464

Attack vector: network
Privileges: unauthenticated

Timeline

How it unfolded

Mar 7, 2023CVE publishedPublication date reported by the CVE source.
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.

Affected versionversion=-

What conditions does exploitation require?

Attack vectornetwork

Required privilegesunauthenticated

What is affected?

Qualcomm · Qualcomm SDX55M Firmwareversion=-

Qualcomm · Qualcomm QCA6431 Firmwareversion=-

Qualcomm · Qualcomm SD780G Firmwareversion=-

Qualcomm · Qualcomm QCA6595AU Firmwareversion=-

Qualcomm · Qualcomm WCD9375 Firmwareversion=-

Qualcomm · Qualcomm Snapdragon 4 Gen 1 Firmwareversion=-

Qualcomm · SA515M Firmwareversion=-

Qualcomm · WSA8810 Firmwareversion=-

Qualcomm · QCA8337 Firmwareversion=-

Qualcomm · Qualcomm QCA6426 Firmwareversion=-

Qualcomm · QCA8081 Firmwareversion=-

Qualcomm · Qualcomm WCN6855 Firmwareversion=-

Qualcomm · QCM6490 Firmwareversion=-

Qualcomm · Qualcomm SM7325P Firmwareversion=-

Qualcomm · Snapdragonversion=AQT1000; version=AR8035; version=QCA6390; version=QCA6391; version=QCA6421; version=QCA6426; version=QCA6431; version=QCA6436; version=QCA6574A; version=QCA6574AU; version=QCA6595AU; version=QCA6696; version=QCA8081; version=QCA8337; version=QCM6490; version=QCN6024; version=QCN9024; version=QCS6490; version=QCX315; version=SA515M; version=SD480; version=SD690 5G; version=SD695; version=SD750G; version=SD765; version=SD765G; version=SD768G; version=SD778G; version=SD780G; version=SD855; version=SD865 5G; version=SD870; version=SD888 5G; version=SD 8 Gen1 5G; version=SDX50M; version=SDX55; version=SDX55M; version=SDX57M; version=SDX65; version=SDX70M; version=SDXR2 5G; version=SM7250P; version=SM7325P; version=Snapdragon 4 Gen 1; version=WCD9341; 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 · Qualcomm SD768G Firmwareversion=-

Qualcomm · QCA6421 Firmwareversion=-

Qualcomm · QCS6490 Firmwareversion=-

Qualcomm · Qualcomm SD855 Firmwareversion=-

Qualcomm · WCN7851 Firmwareversion=-

Qualcomm · WCD9370 Firmwareversion=-

Qualcomm · Qualcomm SDXR2 5G Firmwareversion=-

Qualcomm · Qualcomm SDX65 Firmwareversion=-

Qualcomm · SD 8 Gen1 5G Firmwareversion=-

Qualcomm · Qualcomm SM7250P Firmwareversion=-

Qualcomm · Qualcomm WCD9341 Firmwareversion=-

Qualcomm · WCN3988 Firmwareversion=-

Qualcomm · Qualcomm SD695 Firmwareversion=-

Qualcomm · Qualcomm QCA6436 Firmwareversion=-

Qualcomm · QCA6574AU Firmwareversion=-

Qualcomm · Qualcomm SD888 5G Firmwareversion=-

Qualcomm · Qualcomm QCA6390 Firmwareversion=-

Qualcomm · Qualcomm SD765 Firmwareversion=-

Qualcomm · WCD9380 Firmwareversion=-

Qualcomm · Qualcomm WCN6740 Firmwareversion=-

Qualcomm · Qualcomm QCA6574A Firmwareversion=-

Qualcomm · Qualcomm WCN3991 Firmwareversion=-

Qualcomm · SD778G Firmwareversion=-

Qualcomm · QCN6024 Firmwareversion=-

Qualcomm · Qualcomm SD690 5G Firmwareversion=-

Qualcomm · Qualcomm SDX57M Firmwareversion=-

Qualcomm · Qualcomm SD870 Firmwareversion=-

Qualcomm · Qualcomm SD865 5G Firmwareversion=-

Qualcomm · AR8035 Firmwareversion=-

Qualcomm · QCN9024 Firmwareversion=-

Qualcomm · Qualcomm WCN6750 Firmwareversion=-

Qualcomm · AQT1000 Firmwareversion=-

Qualcomm · Qualcomm SD750G Firmwareversion=-

Qualcomm · Qualcomm SDX55 Firmwareversion=-

Qualcomm · Qualcomm WCN6851 Firmwareversion=-

Qualcomm · Qualcomm SDX50M 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 · Qualcomm SD765G Firmwareversion=-

Qualcomm · QCA6696 Firmwareversion=-

Qualcomm · WSA8815 Firmwareversion=-

Qualcomm · QCX315 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 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-617Reachable Assertion

T1464Network 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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