CVE-2021-1947

Use-after-free vulnerability in kernel graphics driver because of storing an invalid pointer in...

8.4 HighFix available

Use-after-free vulnerability in kernel graphics driver because of storing an invalid pointer in 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: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.16%Down 0.3 points since Sep 17, 2021

What each source reports

CVE List Score used 8.4

Record: CVE-2021-1947
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

EUVDEUVD-2021-7411 8.4

Record: EUVD-2021-7411
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-7q63-mgr2-2p5j No score

Use-after-free vulnerability in kernel graphics driver because of storing an invalid pointer in...

Record: GHSA-7q63-mgr2-2p5j
Weakness: CWE-416
Updated: 2026-11-02

NVD 8.4

Record: CVE-2021-1947
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-416
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:2021-08-05, 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-2021-1947 is a high vulnerability (CVSS 8.4) in Qualcomm, Inc. Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial Iot, Snapdragon Mobile, 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 0.16%, the 5th percentile. Fixed in :linux_kernel:Qualcomm SoCVersion:2021-08-05.