# CVE-2023-21651

## Summary

- **CVE ID:** CVE-2023-21651
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-704
- **Published:** Aug 8, 2023
- **Last Modified:** Mar 13, 2026

## Description

Memory Corruption in Core due to incorrect type conversion or cast in secure_io_read/write function in TEE.

## Affected Products

- Qualcomm, Inc. — Snapdragon (AQT1000)
- Qualcomm, Inc. — Snapdragon (AR8031)
- Qualcomm, Inc. — Snapdragon (AR8035)
- Qualcomm, Inc. — Snapdragon (CSRA6620)
- Qualcomm, Inc. — Snapdragon (CSRA6640)
- Qualcomm, Inc. — Snapdragon (MDM9205)
- Qualcomm, Inc. — Snapdragon (QAM8295P)
- Qualcomm, Inc. — Snapdragon (QCA4004)
- Qualcomm, Inc. — Snapdragon (QCA6174A)
- Qualcomm, Inc. — Snapdragon (QCA6310)
- Qualcomm, Inc. — Snapdragon (QCA6335)
- Qualcomm, Inc. — Snapdragon (QCA6390)
- Qualcomm, Inc. — Snapdragon (QCA6391)
- Qualcomm, Inc. — Snapdragon (QCA6420)
- Qualcomm, Inc. — Snapdragon (QCA6421)
- Qualcomm, Inc. — Snapdragon (QCA6426)
- Qualcomm, Inc. — Snapdragon (QCA6430)
- Qualcomm, Inc. — Snapdragon (QCA6431)
- Qualcomm, Inc. — Snapdragon (QCA6436)
- Qualcomm, Inc. — Snapdragon (QCA6564A)
- Qualcomm, Inc. — Snapdragon (QCA6564AU)
- Qualcomm, Inc. — Snapdragon (QCA6574)
- Qualcomm, Inc. — Snapdragon (QCA6574A)
- Qualcomm, Inc. — Snapdragon (QCA6574AU)
- Qualcomm, Inc. — Snapdragon (QCA6595)
- Qualcomm, Inc. — Snapdragon (QCA6595AU)
- Qualcomm, Inc. — Snapdragon (QCA6696)
- Qualcomm, Inc. — Snapdragon (QCA8081)
- Qualcomm, Inc. — Snapdragon (QCA8337)
- Qualcomm, Inc. — Snapdragon (QCA9377)
- Qualcomm, Inc. — Snapdragon (QCA9984)
- Qualcomm, Inc. — Snapdragon (QCC5100)
- Qualcomm, Inc. — Snapdragon (QCM2290)
- Qualcomm, Inc. — Snapdragon (QCM4290)
- Qualcomm, Inc. — Snapdragon (QCM6490)
- Qualcomm, Inc. — Snapdragon (QCN6024)
- Qualcomm, Inc. — Snapdragon (QCN7606)
- Qualcomm, Inc. — Snapdragon (QCN9011)
- Qualcomm, Inc. — Snapdragon (QCN9012)
- Qualcomm, Inc. — Snapdragon (QCN9024)
- Qualcomm, Inc. — Snapdragon (QCS2290)
- Qualcomm, Inc. — Snapdragon (QCS405)
- Qualcomm, Inc. — Snapdragon (QCS4290)
- Qualcomm, Inc. — Snapdragon (QCS603)
- Qualcomm, Inc. — Snapdragon (QCS605)
- Qualcomm, Inc. — Snapdragon (QCS6490)
- Qualcomm, Inc. — Snapdragon (QCX315)
- Qualcomm, Inc. — Snapdragon (QRB5165)
- Qualcomm, Inc. — Snapdragon (QRB5165M)
- Qualcomm, Inc. — Snapdragon (QRB5165N)
- Qualcomm, Inc. — Snapdragon (QSM8250)
- Qualcomm, Inc. — Snapdragon (QSM8350)
- Qualcomm, Inc. — Snapdragon (SA515M)
- Qualcomm, Inc. — Snapdragon (SA6145P)
- Qualcomm, Inc. — Snapdragon (SA6155)
- Qualcomm, Inc. — Snapdragon (SA6155P)
- Qualcomm, Inc. — Snapdragon (SA8150P)
- Qualcomm, Inc. — Snapdragon (SA8155)
- Qualcomm, Inc. — Snapdragon (SA8155P)
- Qualcomm, Inc. — Snapdragon (SA8295P)
- Qualcomm, Inc. — Snapdragon (SA8540P)
- Qualcomm, Inc. — Snapdragon (SA9000P)
- Qualcomm, Inc. — Snapdragon (SD 675)
- Qualcomm, Inc. — Snapdragon (SD 8 Gen1 5G)
- Qualcomm, Inc. — Snapdragon (SD 8CX)
- Qualcomm, Inc. — Snapdragon (SD 8cx Gen2)
- Qualcomm, Inc. — Snapdragon (SD 8cx Gen3)
- Qualcomm, Inc. — Snapdragon (SD460)
- Qualcomm, Inc. — Snapdragon (SD480)
- Qualcomm, Inc. — Snapdragon (SD662)
- Qualcomm, Inc. — Snapdragon (SD665)
- Qualcomm, Inc. — Snapdragon (SD670)
- Qualcomm, Inc. — Snapdragon (SD675)
- Qualcomm, Inc. — Snapdragon (SD678)
- Qualcomm, Inc. — Snapdragon (SD680)
- Qualcomm, Inc. — Snapdragon (SD690 5G)
- Qualcomm, Inc. — Snapdragon (SD695)
- Qualcomm, Inc. — Snapdragon (SD750G)
- Qualcomm, Inc. — Snapdragon (SD765)
- Qualcomm, Inc. — Snapdragon (SD765G)
- Qualcomm, Inc. — Snapdragon (SD768G)
- Qualcomm, Inc. — Snapdragon (SD778G)
- Qualcomm, Inc. — Snapdragon (SD780G)
- Qualcomm, Inc. — Snapdragon (SD845)
- Qualcomm, Inc. — Snapdragon (SD850)
- Qualcomm, Inc. — Snapdragon (SD855)
- Qualcomm, Inc. — Snapdragon (SD865 5G)
- Qualcomm, Inc. — Snapdragon (SD870)
- Qualcomm, Inc. — Snapdragon (SD888)
- Qualcomm, Inc. — Snapdragon (SD888 5G)
- Qualcomm, Inc. — Snapdragon (SDX24)
- Qualcomm, Inc. — Snapdragon (SDX50M)
- Qualcomm, Inc. — Snapdragon (SDX55)
- Qualcomm, Inc. — Snapdragon (SDX55M)
- Qualcomm, Inc. — Snapdragon (SDX57M)
- Qualcomm, Inc. — Snapdragon (SDX65)
- Qualcomm, Inc. — Snapdragon (SDXR2 5G)
- Qualcomm, Inc. — Snapdragon (SG4150P)
- Qualcomm, Inc. — Snapdragon (SM4125)
- Qualcomm, Inc. — Snapdragon (SM4375)
- Qualcomm, Inc. — Snapdragon (SM7250P)
- Qualcomm, Inc. — Snapdragon (SM7315)
- Qualcomm, Inc. — Snapdragon (SM7325P)
- Qualcomm, Inc. — Snapdragon (SSG2115P)
- Qualcomm, Inc. — Snapdragon (SSG2125P)
- Qualcomm, Inc. — Snapdragon (SW5100)
- Qualcomm, Inc. — Snapdragon (SW5100P)
- Qualcomm, Inc. — Snapdragon (SXR1230P)
- Qualcomm, Inc. — Snapdragon (SXR2150P)
- Qualcomm, Inc. — Snapdragon (WCD9306)
- Qualcomm, Inc. — Snapdragon (WCD9326)
- Qualcomm, Inc. — Snapdragon (WCD9335)
- Qualcomm, Inc. — Snapdragon (WCD9340)
- Qualcomm, Inc. — Snapdragon (WCD9341)
- Qualcomm, Inc. — Snapdragon (WCD9360)
- Qualcomm, Inc. — Snapdragon (WCD9370)
- Qualcomm, Inc. — Snapdragon (WCD9375)
- Qualcomm, Inc. — Snapdragon (WCD9380)
- Qualcomm, Inc. — Snapdragon (WCD9385)
- Qualcomm, Inc. — Snapdragon (WCN3910)
- Qualcomm, Inc. — Snapdragon (WCN3950)
- Qualcomm, Inc. — Snapdragon (WCN3980)
- Qualcomm, Inc. — Snapdragon (WCN3988)
- Qualcomm, Inc. — Snapdragon (WCN3990)
- Qualcomm, Inc. — Snapdragon (WCN3991)
- Qualcomm, Inc. — Snapdragon (WCN3998)
- Qualcomm, Inc. — Snapdragon (WCN3999)
- Qualcomm, Inc. — Snapdragon (WCN6740)
- Qualcomm, Inc. — Snapdragon (WCN6750)
- Qualcomm, Inc. — Snapdragon (WCN6850)
- Qualcomm, Inc. — Snapdragon (WCN6851)
- Qualcomm, Inc. — Snapdragon (WCN6855)
- Qualcomm, Inc. — Snapdragon (WCN6856)
- Qualcomm, Inc. — Snapdragon (WCN7850)
- Qualcomm, Inc. — Snapdragon (WCN7851)
- Qualcomm, Inc. — Snapdragon (WSA8810)
- Qualcomm, Inc. — Snapdragon (WSA8815)
- Qualcomm, Inc. — Snapdragon (WSA8830)
- Qualcomm, Inc. — Snapdragon (WSA8832)
- Qualcomm, Inc. — Snapdragon (WSA8835)

## References

- [CNA](https://www.qualcomm.com/company/product-security/bulletins/august-2023-bulletin)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.05%
- **EPSS Percentile:** 16.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._