CVE-2026-20542
mediumIn apusys, there is a possible memory corruption due to use after free.
Vendor / product: Mediatek — mt2718 firmware
In apusys, there is a possible memory corruption due to use after free. 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: ALPS11076799; Issue ID: MSV-8143.
CVSS
6.7
6.7 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/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: 2026-10-09 17:37
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 / mt2718_firmware all versions
mediatek / mt6878_firmware all versions
mediatek / mt6897_firmware all versions
mediatek / mt6899_firmware all versions
mediatek / mt6989_firmware all versions
mediatek / mt6991_firmware all versions
mediatek / mt8171_firmware all versions
mediatek / mt8188_firmware all versions
mediatek / mt8189_firmware all versions
mediatek / mt8196_firmware all versions
mediatek / mt8370_firmware all versions
mediatek / mt8371_firmware all versions
mediatek / mt8390_firmware all versions
mediatek / mt8391_firmware all versions
mediatek / mt8395_firmware all versions
mediatek / mt8678_firmware all versions
mediatek / mt8792_firmware all versions
mediatek / mt8793_firmware all versions
mediatek / mt8796_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 ↗