Security readout for executives and security teams
Plain-English summary
CVE-2023-30921 is a missing permission check in a UNISOC messaging service. A local app or user context could disclose information without needing extra execution privileges. The public bundle does not provide CVSS, affected OEM device models, patch details, or evidence of active exploitation.
Executive priority
Treat this as a tracking and hygiene issue unless your fleet includes affected UNISOC-based Android devices. Business urgency rises for organizations using low-cost or specialized Android devices for sensitive communications, because the issue concerns local information disclosure and patch evidence is incomplete.
Technical view
The issue affects UNISOC chipsets listed by the CVE across Android 10 through Android 13. The weakness is described only as a missing permission check in the messaging service causing local information disclosure. No CWE, attack vector detail, or fixed build identifier is provided in the supplied sources.
Likely exposure
Exposure is most likely on Android devices using the listed UNISOC platforms: SC9863A, SC9832E, SC7731E, T310, T606, T610, T612, T616, T618, T760, T770, T820, or S8000 on Android 10-13.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of exploitation in the wild. The described prerequisite is local access, with no additional execution privileges needed. Public exploitability details are not available in the supplied sources.
Researcher notes
The public record is sparse: no CVSS, CWE, fixed version, proof-of-concept status, or device-model mapping is included. Avoid assuming exploitability beyond local information disclosure. Validation should focus on chipset identification, Android version, firmware lineage, and vendor advisory status.
Mitigation direction
- Check UNISOC and OEM advisories for fixed firmware or security update guidance.
- Inventory Android devices for affected UNISOC chipsets and Android 10-13 builds.
- Prioritize updates for devices handling sensitive messages or business communications.
- Use MDM controls to reduce installation and execution of untrusted local apps.
Validation and detection
- Map device models to underlying UNISOC chipset and Android major version.
- Compare firmware/security patch levels against OEM or UNISOC guidance.
- Confirm whether any affected devices remain unmanaged or outside update support.
- Document exceptions where vendor fix information 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-2023-30921 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://www.unisoc.com/en_us/secy/announcementDetail/1676902764208259073CVE 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.