Vulnerability details
CVE-2026-20586
MediaTek chipset
CVSS 3.1
8.8High
Official description
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset | MT6768 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6769 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6789 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6833 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6855 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6877 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8771 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8781 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8781X | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8786 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8791T | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-10-05
- Last updated
- 2026-10-30
- State
- Published
- Assigner (CNA)
- MediaTek
Exploit prediction (EPSS)
0.39%
Probability of exploitation in 30 days
33.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-787Out-of-bounds Write