CVE-2026-20586
highIn vdec, there is a possible out of bounds write due to a missing bounds check.
Vendor / product: 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.
CVSS
8.8
8.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
Timeline (UTC)
Published: 2026-10-05 02:16
Modified: 2026-10-21 08:16
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 06:57 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
mediatek / mt8910_firmware all versions
mediatek / mt2718_firmware all versions
mediatek / mt6768_firmware all versions
mediatek / mt6789_firmware all versions
mediatek / mt6769_firmware all versions
mediatek / mt6833_firmware all versions
mediatek / mt6855_firmware all versions
mediatek / mt6877_firmware all versions
mediatek / mt8186_firmware all versions
mediatek / mt8188_firmware all versions
mediatek / mt8189_firmware all versions
mediatek / mt8195_firmware all versions
mediatek / mt8196_firmware all versions
mediatek / mt8367_firmware all versions
mediatek / mt8391_firmware all versions
mediatek / mt8395_firmware all versions
mediatek / mt8668_firmware all versions
mediatek / mt8676_firmware all versions
mediatek / mt8678_firmware all versions
mediatek / mt8696_firmware all versions
mediatek / mt8781_firmware all versions
mediatek / mt8788e_firmware all versions
mediatek / mt8792_firmware all versions
mediatek / mt8793_firmware all versions
mediatek / mt8799_firmware all versions
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://www.mediatek.com/product-security-bulletin/October-2026
References
- https://www.mediatek.com/product-security-bulletin/October-2026 security@mediatek.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:57 UTC · record ↗