Security readout for executives and security teams
Plain-English summary
This MediaTek display flaw could let an attacker who already has System-level execution read memory beyond intended bounds and disclose local information. It affects listed MediaTek chipsets running Android 12 or 13. No user interaction is required, but the privilege prerequisite materially limits likely attack paths.
Executive priority
Treat this as a patch-management item for affected MediaTek Android fleets, not an emergency based on current evidence. Prioritize managed mobile, rugged, kiosk, and embedded Android devices where firmware updates lag.
Technical view
CVE-2023-20748 is an out-of-bounds read in MediaTek display components caused by a missing bounds check. The CVE states local information disclosure is possible with System execution privileges. MediaTek identifies patch ID ALPS07536951 for affected SoCs MT6879, MT6886, MT6895, MT6983, MT6985, MT8673, and MT8781.
Likely exposure
Exposure is most likely on Android 12 or 13 devices using the named MediaTek chipsets and firmware predating the vendor/OEM update containing ALPS07536951.
Exploitation context
The provided sources do not show active exploitation, public exploit availability, or CISA KEV listing. Exploitation is local and requires System execution privileges, so this is more concerning as part of a chained compromise than as an initial access issue.
Researcher notes
Sources provide limited technical detail: no CVSS vector, CWE, root-cause code path, or exploit indicators are published in the bundle. Avoid assuming broader Android or MediaTek product impact beyond the listed SoCs and Android versions.
Mitigation direction
- Apply OEM firmware updates that include MediaTek patch ALPS07536951.
- Prioritize affected Android 12 and 13 devices with listed MediaTek chipsets.
- Check MediaTek and device-vendor bulletins for device-specific update availability.
- Retire or isolate affected devices that cannot receive vendor fixes.
Validation and detection
- Inventory Android devices by chipset, OS version, and vendor firmware build.
- Confirm whether devices contain MT6879, MT6886, MT6895, MT6983, MT6985, MT8673, or MT8781.
- Verify installed firmware includes the July 2023 MediaTek bulletin fix for ALPS07536951.
- Review mobile management data for unpatched Android 12 or 13 devices.
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-2023-20748 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.