Security fix · CVE-2026-20453
In geniezone, there is a possible out of bounds write due to a missing bounds check.
Published Jun 1, 2026 · corrected/updated Jul 22, 2026 · mediatek mt8673 firmware · evidence confidence medium
In geniezone, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10886526; Issue ID: MSV-6791.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-20453 is a medium public vulnerability record for mediatek mt8673 firmware. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether mediatek mt8673 firmware is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: mediatek/mt8673 firmware; mediatek/mt8765 firmware; mediatek/mt8766 firmware; mediatek/mt8768 firmware. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 6.7. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-787. Sources contributing to this record: nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jun 1, 2026 · NIST NVD
Detected
In geniezone, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10886526; Issue ID: MSV-6791.
Jul 22, 2026 · NIST NVD
Updated
In geniezone, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10886526; Issue ID: MSV-6791.
Affected
- cpe mediatek/mt8673 firmwareversion unspecified
- cpe mediatek/mt8765 firmwareversion unspecified
- cpe mediatek/mt8766 firmwareversion unspecified
- cpe mediatek/mt8768 firmwareversion unspecified
- cpe mediatek/mt8781 firmwareversion unspecified
- cpe mediatek/mt8786 firmwareversion unspecified
- cpe mediatek/mt8788 firmwareversion unspecified
- cpe mediatek/mt8791t firmwareversion unspecified
- cpe mediatek/mt8793 firmwareversion unspecified
- cpe mediatek/mt8797 firmwareversion unspecified
- cpe mediatek/mt8798 firmwareversion unspecified
- cpe mediatek/mt8910 firmwareversion unspecified
Sources
- NIST NVDVulnerability recordCVE-2026-20453
In geniezone, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10886526; Issue ID:
nvd.nist.gov