Security readout for executives and security teams
Plain-English summary
This Android 11 flaw lets a local app obtain information through Android's backup service because a permission check was missing. The sources describe information disclosure only, with no user interaction required and no extra execution privileges needed.
Executive priority
Treat this as a patch hygiene issue for Android 11 fleets, not an emergency based on current sources. Prioritize devices that remain unpatched, are user-managed, or handle regulated data.
Technical view
CVE-2021-0554 affects BackupManagerService.java in Android 11. The isBackupServiceActive path lacked a required permission check, creating a local information disclosure condition. The public record does not provide CVSS, CWE, affected OEM scope, or detailed remediation text.
Likely exposure
Exposure is most relevant to Android 11 devices that have not received the applicable Android or Pixel security update. OEM patch timing may vary, so device patch level matters more than Android version alone.
Exploitation context
The source bundle does not cite active exploitation, public exploit code, or CISA KEV listing. Exploitation is described as local, requiring no user interaction and no additional execution privileges.
Researcher notes
Evidence is limited to the CVE description and Android/Pixel bulletin reference. The record identifies Android ID A-158482162 but does not disclose impact detail, affected OEM builds, exploitability proof, or precise fixed build identifiers.
Mitigation direction
- Apply Android or OEM updates covering the June 2021 Android/Pixel security bulletin.
- Prioritize Android 11 devices with sensitive data or broad app installation rights.
- Use EMM/MDM controls to restrict untrusted app installation where patching lags.
- Check vendor guidance for device-specific patch availability and support status.
Validation and detection
- Inventory Android 11 devices and record current Android security patch level.
- Confirm whether each OEM build includes the June 2021 bulletin fix.
- Review MDM compliance reports for devices missing the relevant patch level.
- For managed fleets, verify unsupported Android 11 devices have compensating controls.
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-2021-0554 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/pixel/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.