CVE-2023-21651

TEE memory corruption via secure I/O cast

Published Aug 8, 2023 · Updated Oct 22, 2024

Memory corruption in Qualcomm Snapdragon Core TEE firmware allows local users to corrupt memory through secure I/O operations. The secure_io_read/write function performs an incorrect type conversion or cast while processing TEE secure I/O data. Local access is required, while the public record does not specify whether corruption causes code execution, disclosure, or a crash.

CVSS severity9.3

Critical

EPSS probability0.12%

Next 30 days · Sep 16, 2026

Known exploitationUnconfirmed

Based on sourced intelligence

Hinoki checkNot available

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Summary

What happened

The record

CVE: CVE-2023-21651
Published: Aug 8, 2023
Updated: Oct 22, 2024

Vendor: Qualcomm
Product: SA8155P Firmware
Classifications: CWE-704

Attack vector: local
Privileges: unauthenticated

Timeline

How it unfolded

Aug 8, 2023CVE publishedPublication date reported by the CVE source.
Oct 22, 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=0 <=*

What conditions does exploitation require?

Attack vectorlocal

Required privilegesunauthenticated

What is affected?

Qualcomm · SA8155P Firmwareversion=0 <=*

Qualcomm · Qualcomm SDX55M Firmwareversion=0 <=*

Qualcomm · Qualcomm SM7315 Firmwareversion=0 <=*

Qualcomm · SA9000P Firmwareversion=0 <=*

Qualcomm · QCN7606 Firmwareversion=0 <=*

Qualcomm · WCD9326 Firmwareversion=0 <=*

Qualcomm · Qualcomm QRB5165N Firmwareversion=0 <=*

Qualcomm · SA8155 Firmwareversion=0 <=*

Qualcomm · QSM8350 Firmwareversion=0 <=*

Qualcomm · SW5100 Firmwareversion=0 <=*

Qualcomm · SW5100P Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6431 Firmwareversion=0 <=*

Qualcomm · SA8540P Firmwareversion=0 <=*

Qualcomm · Qualcomm SD780G Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6595AU Firmwareversion=0 <=*

Qualcomm · Qualcomm WCD9375 Firmwareversion=0 <=*

Qualcomm · SD 8cx Gen3 Firmwareversion=0 <=*

Qualcomm · Qualcomm SDX24 Firmwareversion=0 <=*

Qualcomm · Qualcomm SM4125 Firmwareversion=0 <=*

Qualcomm · CSRA6620 Firmwareversion=0 <=*

Qualcomm · SA515M Firmwareversion=0 <=*

Qualcomm · WSA8810 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCD9306 Firmwareversion=0 <=*

Qualcomm · QCA8337 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN3999 Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6426 Firmwareversion=0 <=*

Qualcomm · QCA8081 Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6595 Firmwareversion=0 <=*

Qualcomm · Qualcomm SM4375 Firmwareversion=0 <=*

Qualcomm · WCD9360 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD850 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN6855 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD888 Firmwareversion=0 <=*

Qualcomm · CSRA6640 Firmwareversion=0 <=*

Qualcomm · QCM6490 Firmwareversion=0 <=*

Qualcomm · Qualcomm SM7325P Firmwareversion=0 <=*

Qualcomm · Snapdragonversion=AQT1000; version=AR8031; version=AR8035; version=CSRA6620; version=CSRA6640; version=MDM9205; version=QAM8295P; version=QCA4004; version=QCA6174A; version=QCA6310; version=QCA6335; version=QCA6390; version=QCA6391; version=QCA6420; version=QCA6421; version=QCA6426; version=QCA6430; version=QCA6431; version=QCA6436; version=QCA6564A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6595; version=QCA6595AU; version=QCA6696; version=QCA8081; version=QCA8337; version=QCA9377; version=QCA9984; version=QCC5100; version=QCM2290; version=QCM4290; version=QCM6490; version=QCN6024; version=QCN7606; version=QCN9011; version=QCN9012; version=QCN9024; version=QCS2290; version=QCS405; version=QCS4290; version=QCS603; version=QCS605; version=QCS6490; version=QCX315; version=QRB5165; version=QRB5165M; version=QRB5165N; version=QSM8250; version=QSM8350; version=SA515M; version=SA6145P; version=SA6155; version=SA6155P; version=SA8150P; version=SA8155; version=SA8155P; 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=SD750G; version=SD765; version=SD765G; version=SD768G; version=SD778G; version=SD780G; version=SD845; version=SD850; version=SD855; version=SD865 5G; version=SD870; version=SD888; version=SD888 5G; version=SD 8CX; version=SD 8cx Gen2; version=SD 8cx Gen3; version=SD 8 Gen1 5G; version=SDX24; version=SDX50M; version=SDX55; version=SDX55M; version=SDX57M; version=SDX65; version=SDXR2 5G; version=SG4150P; version=SM4125; version=SM4375; version=SM7250P; version=SM7315; version=SM7325P; version=SSG2115P; version=SSG2125P; version=SW5100; version=SW5100P; version=SXR1230P; version=SXR2150P; version=WCD9306; version=WCD9326; version=WCD9335; version=WCD9340; version=WCD9341; version=WCD9360; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCN3910; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN3990; version=WCN3991; version=WCN3998; version=WCN3999; 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=0 <=*

Qualcomm · SD678 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN6856 Firmwareversion=0 <=*

Qualcomm · WCN7850 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD768G Firmwareversion=0 <=*

Qualcomm · QCA6421 Firmwareversion=0 <=*

Qualcomm · QCS6490 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD855 Firmwareversion=0 <=*

Qualcomm · SA8295P Firmwareversion=0 <=*

Qualcomm · SXR1230P Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6564A Firmwareversion=0 <=*

Qualcomm · WCN7851 Firmwareversion=0 <=*

Qualcomm · SSG2125P Firmwareversion=0 <=*

Qualcomm · SD 8cx Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA9377 Firmwareversion=0 <=*

Qualcomm · WCD9370 Firmwareversion=0 <=*

Qualcomm · Qualcomm SDXR2 5G Firmwareversion=0 <=*

Qualcomm · SA8150P Firmwareversion=0 <=*

Qualcomm · Qualcomm QRB5165M Firmwareversion=0 <=*

Qualcomm · QCA6420 Firmwareversion=0 <=*

Qualcomm · SSG2115P Firmwareversion=0 <=*

Qualcomm · Qualcomm SDX65 Firmwareversion=0 <=*

Qualcomm · SD 8 Gen1 5G Firmwareversion=0 <=*

Qualcomm · Qualcomm SM7250P Firmwareversion=0 <=*

Qualcomm · Qualcomm WCD9341 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD845 Firmwareversion=0 <=*

Qualcomm · QCM4290 Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6564AU Firmwareversion=0 <=*

Qualcomm · Qualcomm QCS603 Firmwareversion=0 <=*

Qualcomm · WCN3988 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD695 Firmwareversion=0 <=*

Qualcomm · QAM8295P Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6436 Firmwareversion=0 <=*

Qualcomm · AR8031 Firmwareversion=0 <=*

Qualcomm · QCA6574AU Firmwareversion=0 <=*

Qualcomm · QCA9984 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD888 5G Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6390 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD662 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD680 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD765 Firmwareversion=0 <=*

Qualcomm · QCA6335 Firmwareversion=0 <=*

Qualcomm · WCD9380 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN6740 Firmwareversion=0 <=*

Qualcomm · QSM8250 Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6574A Firmwareversion=0 <=*

Qualcomm · QCN9012 Firmwareversion=0 <=*

Qualcomm · QCA4004 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN3991 Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6574 Firmwareversion=0 <=*

Qualcomm · QCM2290 Firmwareversion=0 <=*

Qualcomm · Qualcomm QRB5165 Firmwareversion=0 <=*

Qualcomm · SD460 Firmwareversion=0 <=*

Qualcomm · Qualcomm QCA6430 Firmwareversion=0 <=*

Qualcomm · SD778G Firmwareversion=0 <=*

Qualcomm · QCN6024 Firmwareversion=0 <=*

Qualcomm · QCN9011 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD690 5G Firmwareversion=0 <=*

Qualcomm · QCS4290 Firmwareversion=0 <=*

Qualcomm · Qualcomm SDX57M Firmwareversion=0 <=*

Qualcomm · SA6145P Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN3990 Firmwareversion=0 <=*

Qualcomm · SD665 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD870 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD865 5G Firmwareversion=0 <=*

Qualcomm · QCS2290 Firmwareversion=0 <=*

Qualcomm · AR8035 Firmwareversion=0 <=*

Qualcomm · QCN9024 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD675 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN6750 Firmwareversion=0 <=*

Qualcomm · SD 675 Firmwareversion=0 <=*

Qualcomm · QCA6174A Firmwareversion=0 <=*

Qualcomm · SXR2150P Firmwareversion=0 <=*

Qualcomm · AQT1000 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD750G Firmwareversion=0 <=*

Qualcomm · SA6155 Firmwareversion=0 <=*

Qualcomm · Qualcomm SDX55 Firmwareversion=0 <=*

Qualcomm · Qualcomm SG4150P Firmwareversion=0 <=*

Qualcomm · QCC5100 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN6851 Firmwareversion=0 <=*

Qualcomm · WCN3950 Firmwareversion=0 <=*

Qualcomm · Qualcomm SDX50M Firmwareversion=0 <=*

Qualcomm · WSA8830 Firmwareversion=0 <=*

Qualcomm · QCA6391 Firmwareversion=0 <=*

Qualcomm · Qualcomm QCS405 Firmwareversion=0 <=*

Qualcomm · WCD9385 Firmwareversion=0 <=*

Qualcomm · SD 8cx Gen2 Firmwareversion=0 <=*

Qualcomm · WCD9340 Firmwareversion=0 <=*

Qualcomm · WCN3980 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN6850 Firmwareversion=0 <=*

Qualcomm · WSA8835 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN3998 Firmwareversion=0 <=*

Qualcomm · SD480 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCD9335 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD765G Firmwareversion=0 <=*

Qualcomm · WSA8832 Firmwareversion=0 <=*

Qualcomm · Qualcomm WCN3910 Firmwareversion=0 <=*

Qualcomm · QCA6696 Firmwareversion=0 <=*

Qualcomm · Qualcomm QCS605 Firmwareversion=0 <=*

Qualcomm · MDM9205 Firmwareversion=0 <=*

Qualcomm · Qualcomm SD670 Firmwareversion=0 <=*

Qualcomm · WSA8815 Firmwareversion=0 <=*

Qualcomm · QCX315 Firmwareversion=0 <=*

Qualcomm · QCA6310 Firmwareversion=0 <=*

Published CVSS scores

9.3Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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)

Vectorlocal

Privilegesunauthenticated

Known exploitationUnconfirmed

Public exploitUnconfirmed

Weakness, pattern, technique

CWE-704Incorrect Type Conversion or Cast

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

See the directory against your own environment.

Your stack

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