CVE-2026-20528In ccci, there is a possible out of bounds write and read due to a missing bounds check.
Updated under an hour ago ()
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It affects MediaTek, Inc. MediaTek chipset and 10 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- MediaTek
- NVD analysis
- Analyzed
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MediaTek, Inc. MediaTek chipset mediatek:chipset (from the name) | MT2735; MT2737; MT6813; MT6880; MT6890; MT6980D; MT6986; MT6986D; and 2 more ranges | CNA record |
mediatek mt2735_firmware mediatek:mt2735_firmware | all versions | NVD |
mediatek mt2737_firmware mediatek:mt2737_firmware | all versions | NVD |
mediatek mt6813_firmware mediatek:mt6813_firmware | all versions | NVD |
mediatek mt6880_firmware mediatek:mt6880_firmware | all versions | NVD |
mediatek mt6890_firmware mediatek:mt6890_firmware | all versions | NVD |
mediatek mt6980d_firmware mediatek:mt6980d_firmware | all versions | NVD |
mediatek mt6986_firmware mediatek:mt6986_firmware | all versions | NVD |
mediatek mt6986d_firmware mediatek:mt6986d_firmware | all versions | NVD |
mediatek mt6988_firmware mediatek:mt6988_firmware | all versions | NVD |
mediatek mt6990_firmware mediatek:mt6990_firmware | all versions | NVD |
References
- https://www.mediatek.com/product-security-bulletin/October-2026vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.