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CVE-2023-21656

Improper Input Validation in WLAN HOST

7.8 HighFix available

Memory corruption in WLAN HOST while receiving an WMI event from firmware.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.12%Up 0.1 points since Jun 6, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.8

Improper Input Validation in WLAN HOST

Memory corruption in WLAN HOST while receiving an WMI event from firmware.

Record
CVE-2023-21656
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-20
Updated
2026-11-02
EUVDEUVD-2023-25823 7.8

Memory corruption in WLAN HOST while receiving an WMI event from firmware.

Record
EUVD-2023-25823
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-vpj3-j2jm-qp35 7.8

Memory corruption in WLAN HOST while receiving an WMI event from firmware.

Memory corruption in WLAN HOST while receiving an WMI event from firmware.

Record
GHSA-vpj3-j2jm-qp35
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-20
Updated
2026-11-02
NVD 7.8

Memory corruption in WLAN HOST while receiving an WMI event from firmware.

Record
CVE-2023-21656
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-20
Updated
2026-11-02

Affected products

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Affected packages

Affected packages
PackageAffectedFixed
platform/vendor/qcom-opensource/wlan/qcacld-3.0
Android
SoCVersion:0 up to SoCVersion:2023-06-05, plus listed versions
SoCVersion
SoCVersion:2023-06-05

History

History
RecordedChangedSources
factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2023-21656 is a high vulnerability (CVSS 7.8) in Qualcomm Ar8035 Firmware, published June 1, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 1st percentile. Fixed in platform/vendor/qcom-opensource/wlan/qcacld-3.0 SoCVersion:2023-06-05.

References

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