Security readout for executives and security teams
Plain-English summary
CVE-2021-0701 is a local privilege escalation flaw in the Android PowerVR kernel driver. A malformed local request could trigger integer overflow and out-of-bounds heap access. The provided sources say no user interaction and no extra execution privileges are needed, but they do not provide CVSS severity or confirmed exploitation.
Executive priority
Treat this as a high-priority mobile and embedded-device patching issue where Android SoC devices use PowerVR drivers. Business urgency depends on asset prevalence and OEM patch availability, not on evidence of active exploitation.
Technical view
The issue is in PVRSRVBridgeSyncPrimOpCreate in the PowerVR kernel driver. Missing size validation can cause integer overflow, mapped to CWE-190, leading to out-of-bounds heap access. The affected scope is listed as Android SoC. The source bundle does not identify specific device models, chipsets, driver branches, or patch mechanics.
Likely exposure
Exposure is most relevant to Android devices or embedded Android SoC platforms that include the affected PowerVR kernel driver. The provided data does not name specific OEMs, models, Android versions, or SoC families beyond Android SoC.
Exploitation context
The sources describe a local escalation path with no user interaction and no additional execution privileges. KEV is false in the bundle, and no cited source claims active exploitation, public exploit availability, or remote exploitation.
Researcher notes
Key unknowns are exact affected driver versions, exploitability details, fixed builds, and OEM mapping. Avoid assuming all Android devices are affected. Focus validation on PowerVR-equipped Android SoC assets and vendor bulletins that mention CVE-2021-0701.
Mitigation direction
- Check Android June 2023 security bulletin guidance for CVE-2021-0701.
- Apply OEM or device security updates that explicitly address this CVE.
- Prioritize Android SoC assets using PowerVR kernel drivers.
- Where updates are unavailable, follow vendor guidance or isolate high-risk devices.
Validation and detection
- Inventory Android devices and embedded Android SoC platforms.
- Confirm whether PowerVR kernel driver components are present.
- Check OEM advisories for CVE-2021-0701 coverage.
- Verify device security update status against vendor guidance.
- Document devices without vendor-confirmed remediation paths.
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.
CWE-190: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-0701 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/2023-06-01CVE reference
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.
Integer Overflow or Wraparound
Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.