Security readout for executives and security teams
Plain-English summary
CVE-2021-39696 is an Android local privilege escalation issue in Task.java caused by a confused deputy condition. Affected devices could let an attacker gain higher privileges, but the source states user interaction is required. No active exploitation is cited in the provided sources.
Executive priority
Treat this as a moderate mobile fleet hygiene issue. It is not cited as actively exploited, but privilege escalation flaws can increase impact after a user-assisted compromise. Prioritize patch compliance for Android 10-12 devices.
Technical view
The CVE describes a confused deputy flaw in Android Task.java affecting Android 10, 11, and 12. Impact is local escalation of privilege with no additional execution privileges needed. The bundle provides no CVSS score, CWE mapping, or exploit details, and points to the Android August 2022 security bulletin.
Likely exposure
Exposure is likely limited to Android 10, 11, or 12 devices that have not received the relevant Android August 2022 security bulletin fixes from Google or their OEM.
Exploitation context
The provided data says exploitation needs user interaction and leads to local privilege escalation. The CVE is not marked in KEV, and the source bundle does not cite public exploitation or in-the-wild activity.
Researcher notes
Evidence is sparse: no CVSS, CWE, commit details, or exploit telemetry are included. Analysis should stay anchored to the Android bulletin and CVE record. Avoid assuming affected components beyond Android Task.java or claiming exploitation without additional sources.
Mitigation direction
- Apply the relevant Android August 2022 security bulletin updates through Google or OEM channels.
- Prioritize Android 10, 11, and 12 devices in managed fleets.
- Check OEM guidance for devices that no longer receive security updates.
- Reduce exposure to untrusted apps and unsafe user-driven installation paths.
- Replace or isolate devices that cannot receive vendor fixes.
Validation and detection
- Inventory Android 10, 11, and 12 devices across managed and BYOD fleets.
- Check each device security patch level against the Android August 2022 bulletin.
- Confirm OEM-specific advisories include CVE-2021-39696 for affected models.
- Review MDM compliance reports for devices missing required security updates.
- Document unsupported devices that cannot be remediated through vendor updates.
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-2021-39696 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/2022-08-01CVE 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.