CVE-2026-20498
Summary
| CVE | CVE-2026-20498 |
|---|---|
| State | PUBLISHED |
| Assigner | MediaTek |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-03 03:16:45 UTC |
| Updated | 2026-08-19 01:05:27 UTC |
| Description | In geniezone, there is a possible escalation of privilege due to a missing permission 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: ALPS10900493; Issue ID: MSV-6765. |
Risk And Classification
Primary CVSS: v3.1 6 MEDIUM from ADP
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
EPSS: 0.001130000 probability, percentile 0.016510000 (date 2026-08-19)
Problem Types: CWE-1287 | CWE-1287 CWE-1287 Improper Validation of Specified Type of Input
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | ADP | DECLARED | 6 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 6 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
NoneCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Mediatek | Mt6991 | - | All | All | All |
| Operating System | Mediatek | Mt6991 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8768 | - | All | All | All |
| Operating System | Mediatek | Mt8768 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8791t | - | All | All | All |
| Operating System | Mediatek | Mt8791t Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8792 | - | All | All | All |
| Operating System | Mediatek | Mt8792 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8796 | - | All | All | All |
| Operating System | Mediatek | Mt8796 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8799 | - | All | All | All |
| Operating System | Mediatek | Mt8799 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8873 | - | All | All | All |
| Operating System | Mediatek | Mt8873 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8883 | - | All | All | All |
| Operating System | Mediatek | Mt8883 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8893 | - | All | All | All |
| Operating System | Mediatek | Mt8893 Firmware | - | All | All | All |
| Hardware | Mediatek | Mt8910 | - | All | All | All |
| Operating System | Mediatek | Mt8910 Firmware | - | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT6991 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8768 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8791T | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8792 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8796 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8799 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8873 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8883 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8893 | Not specified |
| CNA | MediaTek Inc. | MediaTek Chipset | affected MT8910 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.mediatek.com/product-security-bulletin/August-2026 | [email protected] | www.mediatek.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.