Security readout for executives and security teams
Plain-English summary
CVE-2021-0513 is an Android local privilege escalation issue in notification channel handling. A local attacker could bypass permission checks through improper state validation, potentially gaining higher privileges without user interaction. The public bundle does not provide CVSS, CWE, or confirmed exploitation evidence.
Executive priority
Treat this as a patch governance issue for Android fleets. It is not sourced as remotely exploitable or actively exploited, but privilege escalation without user interaction can increase impact after local compromise.
Technical view
The issue is described in NotificationManagerService.java, including deleteNotificationChannel and related functions. Improper state validation may allow a permission bypass through hidden services. Affected versions listed are Android 8.1, 9, 10, and 11. No exploit details, CVSS vector, or patch mechanics are provided in the bundle.
Likely exposure
Exposure is limited to devices running Android 8.1, 9, 10, or 11 that have not received vendor security updates addressing the June 2021 Android bulletin.
Exploitation context
The source states local escalation of privilege, no additional execution privileges, and no user interaction required. It does not show active exploitation, public exploit availability, or remote exploitation. KEV status is false.
Researcher notes
The bundle identifies the vulnerable component and affected Android versions but lacks CVSS, CWE, patch diff, or exploit telemetry. Analysis should stay anchored to Android bulletin and CVE records, then validate against device-specific OEM advisories.
Mitigation direction
- Inventory Android 8.1, 9, 10, and 11 devices.
- Review the Android June 2021 security bulletin and OEM advisories.
- Apply vendor Android security updates covering this issue.
- Reduce exposure to untrusted local apps until devices are patched.
- Track unsupported devices for replacement or isolation.
Validation and detection
- Confirm each device Android version and security patch level.
- Map device models to OEM June 2021 bulletin coverage.
- Verify CVE-2021-0513 appears in vendor remediation notes where available.
- Check mobile device management reports for unpatched affected versions.
- Document exceptions for devices without vendor fixes.
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-2021-0513 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.