CVE-2021-1972

Possible buffer overflow due to improper validation of device types during P2P search in...

9.8 CriticalFix available

Possible buffer overflow due to improper validation of device types during P2P search in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

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

0.81%Up 0.4 points since Sep 9, 2021

What each source reports

CVE List Score used 9.8

Record: CVE-2021-1972
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-2021-7436 9.8

Record: EUVD-2021-7436
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-jvj6-gw3m-g9hf No score

Possible buffer overflow due to improper validation of device types during P2P search in...

Record: GHSA-jvj6-gw3m-g9hf
Weakness: CWE-120
Updated: 2026-11-02

NVD 9.8

Record: CVE-2021-1972
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/external/wpa_supplicant_8` Android	SoCVersion:0 up to SoCVersion:2021-08-05, plus listed versions SoCVersion	SoCVersion:2021-08-05

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-2021-1972 is a critical vulnerability (CVSS 9.8) in Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Iot, Snapdragon Industrial Iot, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure And Networking, published August 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.81%, the 57th percentile. Fixed in platform/external/wpa_supplicant_8 SoCVersion:2021-08-05.