CVE-2026-20558 | Vulnetix

CVE-2026-20558 PUBLISHED CVSS 8.4 HIGH

Reported by mediatek · Published November 2, 2026

In GPU pdma, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11365070; Issue ID: MSV-9547.

Risk scores

CVSS 3.1

8.4

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

Affected products

Vendor	Product	Versions
MediaTek, Inc.	MediaTek chipset	MT6993, MT8910
MediaTek, Inc.	MediaTek chipset	*

Timeline

Nov 2, 2026 CVE Published
Nov 3, 2026 EPSS Score

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The same record, from the CLI:

vulnetix vdb vuln CVE-2026-20558
vulnetix vdb fixes CVE-2026-20558

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-20558/fixes/registry"

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References

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