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Vulnerability record · CVE-2026-20586 · published 5 October 2026

CVE-2026-20586: Mediatek mt8910 firmware out-of-bounds write vulnerability

Mediatek · Mt8910 Firmware

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.

8.8 CVSS 3.1 High EPSS 0.38% · top 69.9% CWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
25Affected product versions listed by NVD
1References
8 Oct 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

25 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.mediatek.com/product-security-bulletin/October-2026 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-20586), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.