Vulnerability details
CVE-2026-20521
MediaTek chipset
CVSS 3.1
8.4High
Official description
In Video HAL, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11375674; Issue ID: MSV-9571.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.4High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset | MT2718 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6768 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6769 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6781 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6789 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6833 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6835 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6853 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6855 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6858 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6877 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6878 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6879 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6881 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6883 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6885 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6886 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6889 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6893 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6895 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6897 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6899 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6983 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6985 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6989 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6991 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT6993 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8126 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8171 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8186 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8188 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8189 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8195 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8196 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8367 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8391 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8395 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8668 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8676 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8678 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8695 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8696 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8781 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8788E | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8792 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8793 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8799 | CVEProject cvelistV5 (CNA) |
| MediaTek, Inc. | MediaTek chipset | MT8910 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-10-05
- Last updated
- 2026-10-06
- State
- Published
- Assigner (CNA)
- MediaTek
Exploit prediction (EPSS)
0.13%
Probability of exploitation in 30 days
3.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-121Stack-based Buffer Overflow