Security readout for executives and security teams
Plain-English summary
CVE-2021-0948 is an Android SoC issue in the PowerVR kernel driver. A driver request can expose uninitialized kernel memory to user space, potentially leaking sensitive data. The source bundle does not provide a CVSS score, affected device models, or confirmed exploitation.
Executive priority
Track and remediate through normal Android fleet patch governance unless local exposure is confirmed on sensitive or unmanaged devices. Business urgency is constrained by missing severity and exploitation evidence.
Technical view
The issue is in PVRSRVBridgeGetMultiCoreInfo ioctl handling in the PowerVR kernel driver. It can return uninitialized kernel memory to user space. The available sources identify Android SoC as affected, but do not provide CWE, score, patch details, or device-specific scope.
Likely exposure
Likely exposure is Android SoC environments that include the affected PowerVR kernel driver. The source bundle does not identify specific OEMs, device models, chipsets, or Android versions beyond Android SoC.
Exploitation context
The source bundle does not cite public exploitation, proof-of-concept availability, or CISA KEV listing. Treat exploitation status as unconfirmed, not actively exploited based on provided evidence.
Researcher notes
Focus validation on PowerVR kernel driver presence and vendor patch mapping. The public source bundle is sparse, so avoid assuming affected models, exploitability beyond information disclosure, or remediation details not stated by Android or OEM sources.
Mitigation direction
- Check Android and OEM security bulletins for CVE-2021-0948 coverage.
- Apply vendor-supported Android or SoC updates referencing the July 2023 bulletin.
- Prioritize devices with PowerVR GPU kernel drivers in managed fleets.
- Replace or isolate unsupported Android devices lacking vendor fixes.
Validation and detection
- Inventory Android devices and SoC/GPU driver families.
- Confirm whether vendor advisories mention CVE-2021-0948.
- Verify installed patch level includes the relevant July 2023 Android bulletin.
- Document unsupported devices where patch confirmation is unavailable.
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-2021-0948 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/2023-07-01CVE 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.