Security readout for executives and security teams
Plain-English summary
CVE-2023-20689 is a MediaTek WLAN firmware flaw that can crash affected devices. The cited impact is remote denial of service, with no privileges or user interaction required. Sources do not show data theft, code execution, or confirmed active exploitation.
Executive priority
Treat this as a targeted availability risk, not a confirmed breach risk. Prioritize remediation where affected devices support critical operations or are difficult to physically service after repeated crashes.
Technical view
The issue is described as an integer overflow in WLAN firmware leading to possible system crash. Affected MediaTek platforms include MT6739, MT8167, MT8321, MT8365, MT8385, MT8666, MT8765, and MT8788 on Android 11.0 / IOT-v23.0. Patch ID and issue ID are ALPS07664741.
Likely exposure
Exposure is most likely in Android or IoT devices using the listed MediaTek chipsets and affected firmware branch. Business impact depends on device role, replacement difficulty, and whether crashes affect operations, safety monitoring, connectivity, or customer-facing services.
Exploitation context
The source states remote denial of service is possible without privileges or user interaction. It does not provide exploit details, CVSS, CWE, attack range, or evidence of exploitation. The CVE is not marked as CISA KEV in the supplied bundle.
Researcher notes
Evidence is limited to a vendor bulletin-style description and CVE metadata. No CVSS, CWE, exploit status, or detailed affected firmware build ranges are supplied beyond Android 11.0 / IOT-v23.0 and the listed chipsets.
Mitigation direction
- Check MediaTek July 2023 guidance and device OEM advisories for ALPS07664741 fixes.
- Inventory devices using the listed MediaTek chipsets and affected Android or IoT versions.
- Prioritize firmware updates for operationally critical, internet-connected, or field-deployed devices.
- If updates are unavailable, ask the OEM for status and compensating guidance.
- Monitor affected device fleets for unexplained WLAN-related crashes or reboots.
Validation and detection
- Confirm whether deployed hardware uses any listed MediaTek chipset.
- Record OS, firmware, and vendor build versions for candidate devices.
- Compare device firmware status against OEM or MediaTek July 2023 bulletin guidance.
- Verify update deployment through device management or vendor firmware reporting.
- Review logs or telemetry for repeated WLAN crashes after remediation.
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-2023-20689 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.