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CVE-2023-21651

Incorrect Type Conversion or Cast in Core

9.3 Critical

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

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.12%Up 0.1 points since Aug 9, 2023
90%50%10%1%

What each source reports

CVE List Score used 9.3

Incorrect Type Conversion or Cast in Core

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

Record
CVE-2023-21651
CVSS 3.1
9.3 CriticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-704
Updated
2026-11-02
EUVDEUVD-2023-25818 9.3

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

Record
EUVD-2023-25818
CVSS 3.1
9.3 CriticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-99gr-hqgx-r784 9.3

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

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

Record
GHSA-99gr-hqgx-r784
CVSS 3.1
9.3 CriticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-704
Updated
2026-11-02
NVD 9.3

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

Record
CVE-2023-21651
CVSS 3.1
9.3 CriticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-704
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-21651 is a critical vulnerability (CVSS 9.3) in Qualcomm Aqt1000 Firmware, published August 8, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 1st percentile. No source names a fixed version.

References

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