Memory corruption via unchecked HLOS message copy
Published Mar 7, 2023 · Updated Aug 3, 2024
Buffer overflow in Qualcomm Snapdragon HLOS firmware allows local users to corrupt memory through an oversized input message. The HLOS message handler copies attacker-controlled input into a fixed-capacity buffer without first verifying that the message length fits. Local low-privileged access is required; successful corruption can compromise execution or crash the affected device.
CVSS severity7.8
HighEPSS probability0.12%
Next 30 days · Sep 16, 2026Known exploitationUnconfirmed
Based on sourced intelligenceHinoki checkNot available
Coverage for this vulnerabilitySummary
What happened
Buffer overflow in Qualcomm Snapdragon HLOS firmware allows local users to corrupt memory through an oversized input message. The HLOS message handler copies attacker-controlled input into a fixed-capacity buffer without first verifying that the message length fits. Local low-privileged access is required; successful corruption can compromise execution or crash the affected device.
The record
- CVE
- CVE-2022-33278
- Published
- Mar 7, 2023
- Updated
- Aug 3, 2024
- Vendor
- Qualcomm
- Product
- SA8155P Firmware
- Classifications
- CWE-120
- Attack vector
- local
- Privileges
- authenticated
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
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.
- Affected versionversion=*
What conditions does exploitation require?
Attack vectorlocal
Required privilegesauthenticated
What is affected?
Qualcomm · SA8155P Firmwareversion=*
Qualcomm · Qualcomm SDX55M Firmwareversion=*
Qualcomm · Qualcomm SM7315 Firmwareversion=*
Qualcomm · SA9000P Firmwareversion=*
Qualcomm · QCN7606 Firmwareversion=*
Qualcomm · WCD9326 Firmwareversion=*
Qualcomm · SA8155 Firmwareversion=*
Qualcomm · QSM8350 Firmwareversion=*
Qualcomm · QCA6698AQ Firmwareversion=*
Qualcomm · SW5100 Firmwareversion=*
Qualcomm · SW5100P Firmwareversion=*
Qualcomm · Qualcomm QCA6431 Firmwareversion=*
Qualcomm · SA8540P Firmwareversion=*
Qualcomm · Qualcomm SD780G Firmwareversion=*
Qualcomm · Qualcomm QCA6595AU Firmwareversion=*
Qualcomm · Qualcomm WCD9375 Firmwareversion=*
Qualcomm · SD 8cx Gen3 Firmwareversion=*
Qualcomm · Qualcomm SM4125 Firmwareversion=*
Qualcomm · Qualcomm SD710 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 4 Gen 1 Firmwareversion=*
Qualcomm · CSRA6620 Firmwareversion=*
Qualcomm · WSA8810 Firmwareversion=*
Qualcomm · QCA8337 Firmwareversion=*
Qualcomm · Qualcomm QCA6426 Firmwareversion=*
Qualcomm · SA6150P Firmwareversion=*
Qualcomm · QCA8081 Firmwareversion=*
Qualcomm · Qualcomm QCA6595 Firmwareversion=*
Qualcomm · Qualcomm WCN7850 Firmwareversion=*
Qualcomm · Qualcomm WCN6855 Firmwareversion=*
Qualcomm · SA8195P Firmwareversion=*
Qualcomm · Qualcomm SD888 Firmwareversion=*
Qualcomm · CSRA6640 Firmwareversion=*
Qualcomm · QCM6490 Firmwareversion=*
Qualcomm · Qualcomm SM7325P Firmwareversion=*
Qualcomm · Snapdragonversion=AQT1000; version=AR8035; version=CSRA6620; version=CSRA6640; version=QAM8295P; version=QCA6390; version=QCA6391; version=QCA6420; version=QCA6421; version=QCA6426; version=QCA6430; version=QCA6431; version=QCA6436; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6595; version=QCA6595AU; version=QCA6696; version=QCA6698AQ; version=QCA8081; version=QCA8337; version=QCC5100; version=QCM2290; version=QCM4290; version=QCM6125; version=QCM6490; version=QCN6024; version=QCN7606; version=QCN9024; version=QCS2290; version=QCS405; version=QCS4290; version=QCS6125; version=QCS6490; version=QSM8350; version=SA4150P; version=SA4155P; version=SA6145P; version=SA6150P; version=SA6155; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155; version=SA8155P; version=SA8195P; version=SA8295P; version=SA8540P; version=SA9000P; version=SD460; version=SD480; version=SD662; version=SD665; version=SD670; version=SD675; version=SD 675; version=SD678; version=SD680; version=SD690 5G; version=SD695; version=SD710; version=SD720G; version=SD730; version=SD750G; version=SD765; version=SD765G; version=SD768G; version=SD778G; version=SD780G; version=SD855; version=SD865 5G; version=SD870; version=SD888; version=SD888 5G; version=SD 8cx Gen3; version=SD 8 Gen1 5G; version=SDX50M; version=SDX55M; version=SDX65; version=SDXR1; version=SDXR2 5G; version=SG4150P; version=SM4125; version=SM6250; version=SM7250P; version=SM7315; version=SM7325P; version=Snapdragon 4 Gen 1; version=SSG2115P; version=SSG2125P; version=SW5100; version=SW5100P; version=SXR1230P; version=SXR2150P; version=SXR2230P; version=WCD9326; version=WCD9335; version=WCD9341; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCN3910; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN3990; 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=WSA8832; version=WSA8835
Qualcomm · SA6155P Firmwareversion=*
Qualcomm · SD678 Firmwareversion=*
Qualcomm · Qualcomm WCN6856 Firmwareversion=*
Qualcomm · Qualcomm SD768G Firmwareversion=*
Qualcomm · Qualcomm SM6250 Firmwareversion=*
Qualcomm · QCA6421 Firmwareversion=*
Qualcomm · QCS6490 Firmwareversion=*
Qualcomm · Qualcomm SD855 Firmwareversion=*
Qualcomm · SA8295P Firmwareversion=*
Qualcomm · SXR1230P Firmwareversion=*
Qualcomm · SA8145P Firmwareversion=*
Qualcomm · SA4155P Firmwareversion=*
Qualcomm · SSG2125P Firmwareversion=*
Qualcomm · WCD9370 Firmwareversion=*
Qualcomm · Qualcomm SDXR2 5G Firmwareversion=*
Qualcomm · SA8150P Firmwareversion=*
Qualcomm · QCA6420 Firmwareversion=*
Qualcomm · SSG2115P Firmwareversion=*
Qualcomm · Qualcomm SDX65 Firmwareversion=*
Qualcomm · SD 8 Gen1 5G Firmwareversion=*
Qualcomm · Qualcomm SM7250P Firmwareversion=*
Qualcomm · Qualcomm WCD9341 Firmwareversion=*
Qualcomm · QCM4290 Firmwareversion=*
Qualcomm · WCN3988 Firmwareversion=*
Qualcomm · Qualcomm SD695 Firmwareversion=*
Qualcomm · QAM8295P Firmwareversion=*
Qualcomm · Qualcomm QCA6436 Firmwareversion=*
Qualcomm · Qualcomm SDXR1 Firmwareversion=*
Qualcomm · Qualcomm WCN7851 Firmwareversion=*
Qualcomm · QCA6574AU Firmwareversion=*
Qualcomm · Qualcomm SD888 5G Firmwareversion=*
Qualcomm · Qualcomm QCA6390 Firmwareversion=*
Qualcomm · Qualcomm SD662 Firmwareversion=*
Qualcomm · Qualcomm SD680 Firmwareversion=*
Qualcomm · Qualcomm SD765 Firmwareversion=*
Qualcomm · WCD9380 Firmwareversion=*
Qualcomm · Qualcomm WCN6740 Firmwareversion=*
Qualcomm · Qualcomm QCA6574A Firmwareversion=*
Qualcomm · Qualcomm SD720G Firmwareversion=*
Qualcomm · Qualcomm WCN3991 Firmwareversion=*
Qualcomm · Qualcomm QCA6574 Firmwareversion=*
Qualcomm · QCM2290 Firmwareversion=*
Qualcomm · SD460 Firmwareversion=*
Qualcomm · Qualcomm QCA6430 Firmwareversion=*
Qualcomm · Qualcomm SD730 Firmwareversion=*
Qualcomm · QCN6024 Firmwareversion=*
Qualcomm · SXR2230P Firmwareversion=*
Qualcomm · Qualcomm SD690 5G Firmwareversion=*
Qualcomm · QCS4290 Firmwareversion=*
Qualcomm · SA6145P Firmwareversion=*
Qualcomm · Qualcomm WCN3990 Firmwareversion=*
Qualcomm · SD665 Firmwareversion=*
Qualcomm · Qualcomm SD870 Firmwareversion=*
Qualcomm · Qualcomm SD865 5G Firmwareversion=*
Qualcomm · QCS2290 Firmwareversion=*
Qualcomm · Qualcomm SD778G Firmwareversion=*
Qualcomm · AR8035 Firmwareversion=*
Qualcomm · QCN9024 Firmwareversion=*
Qualcomm · Qualcomm SD675 Firmwareversion=*
Qualcomm · Qualcomm WCN6750 Firmwareversion=*
Qualcomm · SD 675 Firmwareversion=*
Qualcomm · AQT1000 Firmwareversion=*
Qualcomm · Qualcomm SD750G Firmwareversion=*
Qualcomm · SA6155 Firmwareversion=*
Qualcomm · Qualcomm SG4150P Firmwareversion=*
Qualcomm · QCC5100 Firmwareversion=*
Qualcomm · Qualcomm WCN6851 Firmwareversion=*
Qualcomm · WCN3950 Firmwareversion=*
Qualcomm · Qualcomm SDX50M Firmwareversion=*
Qualcomm · WSA8830 Firmwareversion=*
Qualcomm · QCA6391 Firmwareversion=*
Qualcomm · Qualcomm QCS405 Firmwareversion=*
Qualcomm · WCD9385 Firmwareversion=*
Qualcomm · QCM6125 Firmwareversion=*
Qualcomm · WCN3980 Firmwareversion=*
Qualcomm · Qualcomm WCN6850 Firmwareversion=*
Qualcomm · WSA8835 Firmwareversion=*
Qualcomm · Qualcomm SXR2150P Firmwareversion=*
Qualcomm · Qualcomm WCN3998 Firmwareversion=*
Qualcomm · QCS6125 Firmwareversion=*
Qualcomm · SD480 Firmwareversion=*
Qualcomm · Qualcomm WCD9335 Firmwareversion=*
Qualcomm · SA4150P Firmwareversion=*
Qualcomm · Qualcomm SD765G Firmwareversion=*
Qualcomm · WSA8832 Firmwareversion=*
Qualcomm · Qualcomm WCN3910 Firmwareversion=*
Qualcomm · QCA6696 Firmwareversion=*
Qualcomm · Qualcomm SD670 Firmwareversion=*
Qualcomm · WSA8815 Firmwareversion=*
Published CVSS scores
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.
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-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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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