CVE-2021-38788

HIGH
7.5
CVSS Score
Published: January 19, 2022 at 03:23 PM UTC
Updated: June 17, 2026 at 04:02 AM UTC
2 products affected across 1 vendorAndroid Q SDKR818

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Severity
HIGH7.5
Exploit prediction
EPSS 2%

Description

The Background service in Allwinner R818 SoC Android Q SDK V1.0 is used to manage background applications. Malicious apps can use the interface provided by the service to set the number of applications allowed to run in the background to 0 and add themselves to the whitelist, so that once other applications enter the background, they will be forcibly stopped by the system, causing a denial of service.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

allwinnertech-r818 (environment)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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