CVE-2021-38789
Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability...
Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability that does not check the caller's permission, in which a third-party app could change system settings.
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
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability that does not check the caller's permission, in which a third-party app could change system settings.
- Record
CVE-2021-38789- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
CVE List No score
Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability that does not check the caller's permission, in which a third-party app could change system settings.
- Record
CVE-2021-38789- Updated
- 2026-11-02
EUVDEUVD-2021-25226 No score
Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability that does not check the caller's permission, in which a third-party app could change system settings.
- Record
EUVD-2021-25226- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j997-wphj-qrj9
Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability...
Allwinner R818 SoC Android Q SDK V1.0 is affected by an incorrect access control vulnerability that does not check the caller's permission, in which a third-party app could change system settings.
- Record
GHSA-j997-wphj-qrj9- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-38789 is a high vulnerability (CVSS 7.5) in Allwinnertech Android Q Sdk, published January 19, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.29%, the 70th percentile. No source names a fixed version.
References
allwinnertech.com/index.php?c=product&a=index&id=92
github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9Aaw_display%20service%20has%20EoP%20Vulnerability.md
cnvd.org.cn/flaw/show/CNVD-2021-46927
vul.wangan.com/a/CNVD-2021-46927
nvd.nist.gov/vuln/detail/CVE-2021-38789