---
title: "CVE-2026-56942: vp9hwd_headers.cc - Out of Bounds Write"
description: "vp9hwd_headers.cc contains an out-of-bounds write caused by a missing bounds check in ReadTileInfo, letting remote attackers escalate privileges without additional execution rights, exploit requires no user interaction."
url: https://panop.io/threat-heartbeat/CVE-2026-56942/
---

# CVE-2026-56942 vp9hwd\_headers.cc - Out of Bounds Write

vp9hwd\_headers.cc contains an out-of-bounds write caused by a missing bounds check in ReadTileInfo, letting remote attackers escalate privileges without additional execution rights, exploit requires no user interaction.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.37% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-56942)

## Details

Type

Out of Bounds Write

Impact

Privilege Escalation

CVSS vector

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

Published

15 September 2026

Updated

15 October 2026

Weakness

[CWE-787](https://cwe.mitre.org/data/definitions/787.html)

## Vendor fix

Update to the latest version containing the bounds check fix.

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-2026-56942](https://nvd.nist.gov/vuln/detail/CVE-2026-56942)
- [https://source.android.com/docs/security/bulletin/pixel/2026/2026-09-01](https://source.android.com/docs/security/bulletin/pixel/2026/2026-09-01)

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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

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