---
id: CVE-2017-9111
aliases:
  - GHSA-qxh9-r8xw-7v99
  - PYSEC-2026-728
title: OpenEXR invalid write
summary: OpenEXR invalid write
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
vendor: openexr
product: openexr
ecosystem: pip
affected:
  - openexr < 2.2.1
patched:
  - openexr 2.2.1
published: '2022-05-13'
updated: '2026-07-06'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-qxh9-r8xw-7v99'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2017-9111'
  - url: 'https://github.com/openexr/openexr/issues/232'
  - url: 'https://github.com/openexr/openexr/pull/233'
  - url: 'https://github.com/AcademySoftwareFoundation/openexr'
  - url: 'https://github.com/openexr/openexr/releases/tag/v2.2.1'
  - url: 'https://lists.debian.org/debian-lts-announce/2020/08/msg00056.html'
  - url: 'https://usn.ubuntu.com/4148-1'
  - url: 'https://usn.ubuntu.com/4339-1'
  - url: 'https://www.debian.org/security/2020/dsa-4755'
  - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00060.html'
  - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00000.html'
  - url: 'http://www.openwall.com/lists/oss-security/2017/05/12/5'
tags:
  - osv
  - pip
epss: 0.03564
epssPercentile: 0.88846
ingestedAt: '2026-07-08T18:25:52.500Z'
---

## Overview

In OpenEXR 2.2.0, an invalid write of size 8 in the storeSSE function in ImfOptimizedPixelReading.h could cause the application to crash or execute arbitrary code.

## Affected packages

- `openexr < 2.2.1`

## Remediation

Upgrade to a patched release:

- `openexr 2.2.1`