CVE-2026-20586 | Vulnetix

CVE-2026-20586 PUBLISHED CVSS 8.8 HIGH

Reported by mediatek · Published October 5, 2026

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.

Risk scores

CVSS 3.1

8.8

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

Affected products

Vendor	Product	Versions
MediaTek, Inc.	MediaTek chipset	MT6768, MT6769, MT6789
MediaTek, Inc.	MediaTek chipset	*

Timeline

Oct 5, 2026 EPSS Score (14 in total, the first dated here)
Oct 5, 2026 CVE Published
Oct 30, 2026 CVE Updated

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-20586
vulnetix vdb fixes CVE-2026-20586

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-20586/fixes/registry"

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References

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