---
title: "CVE-2026-20558: GPU pdma - Privilege Escalation"
description: "GPU pdma contains a use after free vulnerability caused by improper memory management, letting local attackers escalate privileges without additional execution privileges, exploit requires no user interaction."
url: https://panop.io/threat-heartbeat/CVE-2026-20558/
---

# CVE-2026-20558 GPU pdma - Privilege Escalation

GPU pdma contains a use after free vulnerability caused by improper memory management, letting local attackers escalate privileges without additional execution privileges, exploit requires no user interaction.

CVSS base score 8.4 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-20558)

## Details

Type

Privilege Escalation

Impact

Privilege Escalation

CVSS vector

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

Published

2 November 2026

Updated

3 November 2026

Weakness

[CWE-416](https://cwe.mitre.org/data/definitions/416.html)

## Vendor fix

Apply the patch ALPS11365070 or update to the latest version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-20558](https://nvd.nist.gov/vuln/detail/CVE-2026-20558)
- [https://www.mediatek.com/product-security-bulletin/November-2026](https://www.mediatek.com/product-security-bulletin/November-2026)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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