CVE-2026-20528
mediumIn ccci, there is a possible out of bounds write and read due to a missing bounds check.
Vendor / product: Mediatek — mt2735 firmware
In ccci, there is a possible out of bounds write and read due to a missing bounds check. This could lead to local information disclosure, memory corruption, crashes, or privilege escalation if a malicious actor has already obtained the System privilege. User interaction is needed for exploitation. Patch ID: ALPS11428950 (Note: For MT6880, MT6890) / ALPS10563453 (Note: For MT6980D, MT6990, MT6986, MT6986D, MT6813, MT6988) / AUTO00858766 (Note: For MT2735, MT2737); Issue ID: MSV-9893.
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 15:03
NVD status: Analyzed
Last synced 3 days 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 / mt2735_firmware all versions
mediatek / mt2737_firmware all versions
mediatek / mt6813_firmware all versions
mediatek / mt6880_firmware all versions
mediatek / mt6890_firmware all versions
mediatek / mt6980d_firmware all versions
mediatek / mt6986_firmware all versions
mediatek / mt6986d_firmware all versions
mediatek / mt6988_firmware all versions
mediatek / mt6990_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 ↗