Home › Intelligence › Brief
VULNERABILITY BRIEF 🔴 Critical Vulnerability

Critical Remote Code Execution (CVE-2026-92189) in Quest Foglight for Databases Allows Unauthenticated System‑Level Compromise

Quest Foglight for Databases (pre‑8.3) suffers a critical unauthenticated RCE (CVE‑2026‑92189) that lets attackers execute code as SYSTEM by supplying an arbitrary file path. The flaw underscores the need for robust secure‑development and configuration controls, a key audit‑readiness signal for any organization using third‑party monitoring tools.

Verisq™ Intelligence · 📅 November 04, 2026 · 📰 zerodayinitiative.com
Get the weekly threat digestBreaches, exploited vulnerabilities and advisories that matter to your vendors, every Friday. Free.
🔴
Severity
Critical
VU
Type
Vulnerability
🎯
Confidence
High
🏢
Affected
1 sector(s)
✅
Actions
5 recommended
📰
Source
zerodayinitiative.com

Critical Remote Code Execution (CVE‑2026‑92189) in Quest Foglight for Databases

What It Is — Quest Foglight for Databases contains an unauthenticated remote code execution flaw (CVE‑2026‑92189). The vulnerability resides in the writeTopologySectionToFile method, which writes a user‑supplied file path without validation. An attacker can supply an arbitrary path, causing the application to write malicious code that the system then executes with SYSTEM privileges. The CVSS v3.1 base score is 9.8 (Critical), with network‑only access, no authentication, and full confidentiality, integrity, and availability impact. The issue was reported on 30 April 2026, publicly disclosed on 3 November 2026, and is fixed in Foglight 8.3.

Affected Products — Quest Foglight for Databases (all versions prior to 8.3).

Why It Matters for Trust & Control Assurance — The flaw tests the control objective of secure software configuration and validation of privileged operations; a single control that satisfies multiple frameworks (e.g., NIST CSF 2.0 “Protect” and ISO 27001 “Secure Development”).

Recommended Actions — Deploy Foglight 8.3 or later immediately; verify that file‑path inputs are validated; update your asset inventory to flag unpatched Foglight instances; run an authenticated scan for CVE‑2026‑92189; capture remediation evidence for audit readiness. Source: Zero Day Initiative advisory

📰 Original Source
http://www.zerodayinitiative.com/advisories/ZDI-26-861/ ↗

This Verisq Intelligence Brief is an independent analysis. Read the original reporting at the link above.

Vulnerability exposure

Is this CVE in your supply chain?

Verisq matches published vulnerabilities against the software your vendors run, so you know which relationships this touches before the next review.

See vendor exposure →