Security readout for executives and security teams
Plain-English summary
CVE-2021-0493 is an Android SoC issue in a memory management driver. A local attacker could potentially gain higher privileges without user interaction. The sources do not provide CVSS details or evidence of active exploitation, so urgency depends on Android device exposure and patch status.
Executive priority
Treat this as a patch-governance priority for Android fleets, especially where devices handle sensitive data. No active exploitation is cited, but local privilege escalation can materially increase impact after initial compromise.
Technical view
The CVE describes a missing bounds check in an Android SoC memory management driver, causing a possible out-of-bounds write. Android classifies the impact as local escalation of privilege with no additional execution privileges required and no user interaction needed.
Likely exposure
Organizations may be exposed through Android devices using the affected Android SoC component. Exposure is device- and vendor-dependent, so confirm against OEM patch bulletins and Android security patch levels.
Exploitation context
The provided sources do not report active exploitation, public exploit availability, or KEV listing. The attacker context is local, with no user interaction required according to the CVE description.
Researcher notes
The public record is sparse: no CVSS, CWE, affected SoC vendor, or patch diff is provided in the bundle. Focus analysis on Android bulletin mapping, OEM advisories, and device patch provenance rather than assuming all Android devices are affected.
Mitigation direction
- Apply Android/OEM updates that include the May 2021 Android Security Bulletin fixes.
- Confirm supported devices receive security patches from their OEM or carrier.
- Retire or isolate Android devices that cannot receive relevant security updates.
- Restrict untrusted app installation where operationally feasible.
- Monitor Android and OEM advisories for device-specific guidance.
Validation and detection
- Inventory Android devices by model, SoC, OEM, and patch level.
- Check whether devices include the May 2021 Android security patch or later.
- Review OEM bulletins for CVE-2021-0493 applicability to each device family.
- Confirm unsupported or unpatched devices are tracked as residual risk.
- Validate MDM reporting against sampled device settings.
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-2021-0493 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/2021-05-01CVE 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.