Security readout for executives and security teams
Plain-English summary
CVE-2021-0506 is an Android issue where an overlay or tapjacking attack could bypass intended user interaction during intent resolution. A successful attack could raise privileges locally, but it requires user execution privileges and user interaction.
Executive priority
Treat this as a patch hygiene and mobile endpoint management issue. It is not documented as actively exploited, but unpatched affected Android devices retain local privilege escalation risk through user-assisted overlay abuse.
Technical view
The flaw is in Android ActivityPicker.java. The public description says intent resolution user interaction may be bypassed through a tapjacking or overlay attack, leading to local escalation of privilege. Affected versions listed are Android 8.1, 9, 10, and 11.
Likely exposure
Exposure is limited to devices running the listed Android versions that have not received the relevant vendor security update. Device-specific status depends on OEM patch delivery, which is not detailed in the provided sources.
Exploitation context
The source bundle does not report active exploitation, and the CVE is not listed as KEV. Exploitation is local, requires user execution privileges, and requires user interaction, reducing remote mass-exploitation urgency.
Researcher notes
Public evidence is sparse: no CVSS vector, CWE, patch mechanics, or exploit details are included in the source bundle. Analysis should stay tied to Android ActivityPicker.java, intent resolution, overlay/tapjacking, and the listed Android versions.
Mitigation direction
- Check OEM or Android guidance for the June 2021 security bulletin.
- Prioritize security updates for Android 8.1, 9, 10, and 11 devices.
- Reduce unnecessary overlay-capable apps on unmanaged or high-risk devices.
- Use mobile device management to track Android security patch levels.
Validation and detection
- Inventory Android devices by OS version and security patch level.
- Confirm whether affected devices received the June 2021 Android security fixes.
- Review MDM data for devices still on Android 8.1 through 11.
- Flag unmanaged devices where patch status cannot be verified.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-0506 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/2021-06-01CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.