CVE-2021-38783

There is a Out-of-Bound Write in the Allwinner R818 SoC Android Q SDK V1.0 camera driver "/dev...

7.5 High

There is a Out-of-Bound Write in the Allwinner R818 SoC Android Q SDK V1.0 camera driver "/dev/cedar_dev" through iotcl cmd IOCTL_SET_PROC_INFO and IOCTL_COPY_PROC_INFO, which could cause a system crash or EoP.

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: None
Integrity: None
Availability: High

Exploit likelihood

1.82%Up 0.8 points since Jan 19, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2021-38783
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 7.8 HighAV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-38783
Updated: 2026-11-02

EUVDEUVD-2021-25220 No score

Record: EUVD-2021-25220
Updated: 2026-11-03

GitHub AdvisoriesGHSA-pw3j-7fmh-8vpr No score

There is a Out-of-Bound Write in the Allwinner R818 SoC Android Q SDK V1.0 camera driver "/dev...

Record: GHSA-pw3j-7fmh-8vpr
Weakness: CWE-787
Updated: 2026-11-02

Affected products

allwinnertech android q sdk

History

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

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

In short

CVE-2021-38783 is a high vulnerability (CVSS 7.5) in Allwinnertech Android Q Sdk, published January 18, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.82%, the 78th percentile. No source names a fixed version.