CVE-2026-20409 | Vulnetix

CVE-2026-20409 PUBLISHED CVSS 7.8 HIGH

Reported by mediatek · Published February 2, 2026

In imgsys, there is a possible out of bounds write due to a missing bounds check. 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: ALPS10363246; Issue ID: MSV-5779.

Risk scores

CVSS 3.1

7.8

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

Affected products

Vendor	Product	Versions
MediaTek, Inc.	MediaTek chipset	MT6897, MT6989
MediaTek, Inc.	MediaTek chipset	*

Timeline

Feb 2, 2026 EPSS Score (30 in total, the first dated here)
Feb 2, 2026 CVE Published
Feb 3, 2026 PoC Published
Mar 2, 2026 CVE Updated
Mar 25, 2026 Coalition ESS Score (2 in total, the first dated here)
Jun 2, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-20409
vulnetix vdb fixes CVE-2026-20409

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-2026-20409/fixes/registry"

The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart

References

Look up in the Resolve Platform →