---
id: "CVE-2026-20558"
kind: "vulnerability"
aliases: ["CVE-2026-20558"]
title: "GPU pdma driver: use-after-free lets local user escalate privileges"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["android", "gpu-driver", "infrastructure", "mediatek"]
not_affected_if: []
published_at: "2026-11-02T03:17:32+00:00"
first_seen_at: "2026-11-02T03:31:24+00:00"
updated_at: "2026-11-02T03:32:34+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20558", "first_seen_at": "2026-11-02T03:31:24+00:00"}]
---

# GPU pdma driver: use-after-free lets local user escalate privileges

A use-after-free bug in the GPU pdma component can be triggered locally to escalate privileges. The description says no additional execution privileges are needed and no user interaction is required.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-02T03:31:24+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-20558

## From the sources

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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_