CVE-2021-35081

Possible buffer overflow due to improper validation of SSID length received from beacon or probe...

9.8 CriticalFix available

Possible buffer overflow due to improper validation of SSID length received from beacon or probe response during an IBSS session in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.84%Unchanged since Jun 15, 2022

What each source reports

CVE List Score used 9.8

Record: CVE-2021-35081
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

EUVDEUVD-2021-21725 9.8

Record: EUVD-2021-21725
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-x57w-hccr-c6x7 9.8

Possible buffer overflow due to improper validation of SSID length received from beacon or probe...

Record: GHSA-x57w-hccr-c6x7
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-120
Updated: 2026-11-02

NVD 9.8

Record: CVE-2021-35081
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-120
Updated: 2026-11-02

Affected products

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Affected packages

Affected packages
Package	Affected	Fixed
`platform/vendor/qcom-opensource/wlan/qcacld-3.0` 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-2021-35081 is a critical vulnerability (CVSS 9.8) in Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial Iot, Snapdragon Mobile, Snapdragon Voice & Music, published April 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.84%, the 58th percentile. Fixed in platform/vendor/qcom-opensource/wlan/qcacld-3.0 SoCVersion:2022-04-05.