Security Resilience

CVE-2023-21667

Memory Safety in Qualcomm Qca6390 Firmware

Memory Safety
Published
05 September 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0037 29th percentile
Risk Priority 50 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-21667 is a medium-severity Buffer Over-read (CWE-126) vulnerability in Qualcomm Qca6390 Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked at the 29th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

Transient DOS in Bluetooth HOST while passing descriptor to validate the blacklisted BT keyboard.

CWE(s)
CWE-126CWE-125

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
attack.mitre.org →
T1001.002 Steganography Command And Control
Adversaries may use steganographic techniques to hide command and control traffic to make detection efforts more difficult.
attack.mitre.org →
T1001.003 Protocol or Service Impersonation Command And Control
Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts.
attack.mitre.org →
T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-43527Same product: Qualcomm Qca6391
CVE-2023-28571Same product: Qualcomm Qca6390
CVE-2024-21479Same product: Qualcomm Qca6391
CVE-2024-33067Same product: Qualcomm Qca6391
CVE-2023-43528Same product: Qualcomm Qca6391
CVE-2023-28555Same product: Qualcomm Qca6574Au
CVE-2023-33064Same product: Qualcomm Qca6391
CVE-2023-43555Same product: Qualcomm Qca6391
CVE-2023-33065Same product: Qualcomm Qca6391
CVE-2024-33061Same product: Qualcomm Sw5100

Affected Assets

qualcomm
qca6390 firmware
all versions
qualcomm
qca6391 firmware
all versions
qualcomm
qca6426 firmware
all versions
qualcomm
qca6436 firmware
all versions
qualcomm
qca6574au firmware
all versions
qualcomm
qca6595au firmware
all versions
qualcomm
qca6696 firmware
all versions
qualcomm
qcc5100 firmware
all versions
qualcomm
qcn9074 firmware
all versions
qualcomm
qcs410 firmware
all versions
+33 more product configuration(s) — see NVD for full list

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

ID.RA-01 partial match
blocks

Vulnerability identification processes can discover buffer over-read flaws via scanning or review.

PR.PS-02 partial match
blocks

Patching or replacing vulnerable software removes known instances of buffer over-read bugs.

PR.PS-06 partial match
blocks

Secure development practices directly prevent introduction of buffer over-read weaknesses.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References