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CVE-2023-43538

Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in TZ Secure OS

9.3 Critical

Memory corruption in TZ Secure OS while Tunnel Invoke Manager initialization.

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

0.10%Up 0.1 points since Jun 4, 2024
90%50%10%1%

What each source reports

CVE List Score used 9.3

Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in TZ Secure OS

Memory corruption in TZ Secure OS while Tunnel Invoke Manager initialization.

Record
CVE-2023-43538
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-120
Updated
2026-11-02
EUVDEUVD-2023-47944 9.3

Memory corruption in TZ Secure OS while Tunnel Invoke Manager initialization.

Record
EUVD-2023-47944
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-m5g4-gchp-vpxf 9.3

Memory corruption in TZ Secure OS while Tunnel Invoke Manager initialization.

Memory corruption in TZ Secure OS while Tunnel Invoke Manager initialization.

Record
GHSA-m5g4-gchp-vpxf
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-120
Updated
2026-11-02
NVD 9.3

Memory corruption in TZ Secure OS while Tunnel Invoke Manager initialization.

Record
CVE-2023-43538
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-120
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-2023-43538 is a critical vulnerability (CVSS 9.3) in Qualcomm Aqt1000 Firmware, published June 3, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.10%, the 1st percentile. No source names a fixed version.

References

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