Security readout for executives and security teams
Plain-English summary
CVE-2021-0565 is an Android 11 local privilege escalation flaw in audio stream handling. A local attacker could exploit a race condition without user interaction or extra execution privileges. The source bundle does not provide CVSS scoring, CWE mapping, or evidence of active exploitation.
Executive priority
Treat this as a high-priority mobile patching issue for Android 11 assets, especially devices used by privileged staff. The business urgency comes from local privilege escalation with no user interaction, balanced by no provided evidence of active exploitation.
Technical view
The issue is a possible use-after-free in wrapUserThread of AudioStream.cpp caused by a race condition. The CVE record lists Android 11 as affected and identifies Android bug A-174801970. Public sources do not include exploit details, a CWE, or a CVSS vector.
Likely exposure
Exposure is most likely on Android 11 devices that have not received the vendor security update covering CVE-2021-0565. Fleet risk depends on OEM/carrier patch availability and installed Android security patch levels.
Exploitation context
The provided sources state local escalation of privilege, no user interaction, and no additional execution privileges needed. CISA KEV status is false in the bundle, and no cited source establishes active exploitation.
Researcher notes
Available evidence is sparse. The record identifies a race-driven use-after-free in AudioStream.cpp wrapUserThread, but lacks CVSS, CWE, patch diff, exploit status, and deeper affected-component detail. Avoid expanding affected scope beyond Android 11 without vendor confirmation.
Mitigation direction
- Apply vendor Android security updates covering CVE-2021-0565.
- Prioritize Android 11 devices with delayed OEM or carrier patching.
- Check OEM guidance if the June 2021 bulletin is not directly applicable.
- Retire or isolate Android 11 devices that cannot receive security updates.
Validation and detection
- Inventory Android 11 devices across managed and unmanaged fleets.
- Verify each device security patch level includes the vendor fix for CVE-2021-0565.
- Map OEM models to applicable Android or Pixel security bulletins.
- Confirm mobile management reports show patched status after update rollout.
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-2021-0565 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.