CVE-2021-30312

Improper authentication of sub-frames of a multicast AMSDU frame can lead to information...

7.5 HighFix available

Improper authentication of sub-frames of a multicast AMSDU frame can lead to information disclosure 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: None
Availability: None

Exploit likelihood

0.64%Up 0.2 points since Oct 20, 2021

What each source reports

CVE List Score used 7.5

Record: CVE-2021-30312
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

EUVDEUVD-2021-17243 7.5

Record: EUVD-2021-17243
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-5w83-44pm-v58m No score

Improper authentication of sub-frames of a multicast AMSDU frame can lead to information...

Record: GHSA-5w83-44pm-v58m
Weakness: CWE-287
Updated: 2026-11-02

NVD 7.5

Record: CVE-2021-30312
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-287
Updated: 2026-11-02

Affected products

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Affected packages

Affected packages
Package	Affected	Fixed
`:linux_kernel:Qualcomm` Android	SoCVersion:0 up to SoCVersion:2021-10-05, plus listed versions SoCVersion	SoCVersion:2021-10-05
`oss/wigig-utils` Android	SoCVersion:0 up to SoCVersion:2021-10-05, plus listed versions SoCVersion	SoCVersion:2021-10-05

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-2021-30312 is a high vulnerability (CVSS 7.5) 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 October 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.64%, the 51st percentile. Fixed in :linux_kernel:Qualcomm SoCVersion:2021-10-05.