CVE-2021-35071

Possible buffer over read due to lack of size validation while copying data from DBR buffer to RX...

5.5 MediumFix available

Possible buffer over read due to lack of size validation while copying data from DBR buffer to RX buffer and can lead to Denial of Service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

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: None
Integrity: None
Availability: High

Exploit likelihood

0.14%Down 0.7 points since Jun 15, 2022

What each source reports

CVE List Score used 5.5

Record: CVE-2021-35071
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

EUVDEUVD-2021-21715 5.5

Record: EUVD-2021-21715
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-hjgv-q6m4-r3hp 5.5

Possible buffer over read due to lack of size validation while copying data from DBR buffer to RX...

Record: GHSA-hjgv-q6m4-r3hp
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

NVD 5.5

Record: CVE-2021-35071
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 2.1 LowAV:L/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-125
Updated: 2026-11-02

Affected products

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Affected packages

Affected packages
Package	Affected	Fixed
`platform/vendor/qcom-opensource/wlan/qca-wifi-host-cmn` Android	SoCVersion:0 up to SoCVersion:2022-04-05, plus listed versions SoCVersion	SoCVersion:2022-04-05

History

History
Recorded	Changed	Sources
Nov 5, 2026	facts	OSV
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2021-35071 is a medium vulnerability (CVSS 5.5) in Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial Iot, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure And Networking, published April 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. Fixed in platform/vendor/qcom-opensource/wlan/qca-wifi-host-cmn SoCVersion:2022-04-05.