Security readout for executives and security teams
Plain-English summary
CVE-2023-20761 is a MediaTek Android issue in the radio interface layer. A missing bounds check may allow an out-of-bounds write. The vendor says exploitation could lead to local privilege escalation, needs System execution privileges, and does not require user interaction.
Executive priority
Treat this as a mobile fleet patch-management issue, not an emergency based on current evidence. Prioritize confirmation of affected MediaTek Android devices and close gaps where OEM security updates are missing.
Technical view
The flaw is in MediaTek ril and is described as an out-of-bounds write caused by missing bounds checking. MediaTek lists many affected MT chipsets running Android 12.0 and 13.0. Patch ID ALPS07628604 addresses issue ALPS07628582, according to the vendor bulletin.
Likely exposure
Exposure is most likely on Android 12 or 13 devices using the listed MediaTek chipsets. Enterprise exposure depends on device fleet composition, OEM patch availability, and whether devices received the relevant MediaTek/OEM security update.
Exploitation context
The source bundle does not show public exploitation or CISA KEV listing. Exploitation is local, requires System execution privileges according to the CVE text, and does not require user interaction. Practical exploitability is unclear from the provided sources.
Researcher notes
Evidence is limited to the CVE record and MediaTek bulletin. No CVSS, CWE, exploit details, or model-level OEM patch matrix is provided. Avoid assuming affected handset models solely from chipset names.
Mitigation direction
- Identify Android 12 and 13 devices using listed MediaTek chipsets.
- Apply OEM firmware updates that include MediaTek patch ALPS07628604.
- Check MediaTek and device vendor advisories for model-specific update availability.
- Prioritize managed mobile devices with delayed or unsupported firmware updates.
Validation and detection
- Inventory device models, Android versions, and MediaTek chipset families.
- Confirm installed firmware includes the July 2023 MediaTek security fixes.
- Review MDM compliance data for Android security patch levels.
- Track exceptions for devices without OEM patch availability.
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-2023-20761 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://corp.mediatek.com/product-security-bulletin/July-2023CVE 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.