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Foglight for Databases CVE-2026-92188

CRITICAL
Missing Authentication for Critical Function (CWE-306)
2026-11-04 zdi-disclosures@trendmicro.com
9.8
CVSS 3.0 · Vendor: trendmicro
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach Foglight service over network
  2. Delivery
    Access ForgeMBeanServerSupport without auth
  3. Exploit
    Invoke exposed MBean functionality
  4. Execution
    Execute arbitrary code as SYSTEM
  5. Impact
    Full host compromise

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires network access to the ForgeMBeanServerSupport module (an exposed MBean server endpoint) of Quest Foglight for Databases. Per the ZDI advisory and the CVSS vector (AV:N/AC:L/PR:N/UI:N), no special conditions apply - remote unauthenticated exploitation is possible because the module lacks an authentication check before granting access to its functionality, and successful exploitation runs code as SYSTEM. The practical limiting factor is network reachability of the Foglight management/MBean service: deployments where this service is not exposed to the attacker's network segment, or is firewalled/segmented away from untrusted networks, materially reduce exposure. No user interaction, credentials, or non-default configuration is required according to the available evidence.

Impact

All available severity signals point in the same direction for this issue. The CVSS 3.0 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, base 9.8) describes remote, low-complexity, unauthenticated exploitation with full confidentiality, integrity, and availability impact, and the description confirms code execution in the context of SYSTEM - the maximal technical impact. The vuln.today priority is act_now, and the flaw originates from a Trend Micro ZDI advisory (ZDI-26-854, formerly ZDI-CAN-29168), a credible research source. This is a genuine high-priority issue rather than a high-CVSS-but-low-real-risk one: a missing-authentication flaw (CWE-306) that yields SYSTEM-level RCE is directly and reliably exploitable once the service is reachable. That said, several decision signals are missing from the input and should temper absolute urgency scoring: there is NO EPSS exploitation-probability score provided, NO CISA KEV listing provided (so active exploitation is not confirmed), NO SSVC automatable/exposure breakdown, and NO public exploit code referenced - the only reference is the ZDI advisory itself, which is a disclosure notice, not working exploit code. In short, the intrinsic severity and ease of exploitation are near-worst-case, but evidence of real-world exploitation volume (EPSS/KEV) is absent and cannot be assumed; prioritize patching on the strength of the unauthenticated-RCE mechanism and the act_now label rather than on confirmed in-the-wild activity.

Exploit ScenarioDerived

An attacker with network reachability to a Quest Foglight for Databases installation sends requests directly to the ForgeMBeanServerSupport module, which exposes functionality without first checking authentication. Because no credentials or user interaction are required (AV:N/AC:L/PR:N/UI:N), the attacker invokes the exposed functionality to run arbitrary code as SYSTEM on the host. No public exploit identified at time of analysis; the only referenced material is the ZDI advisory.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet

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AnalysisAIv1 – Nov 04, 2026

Remote unauthenticated code execution in Quest Foglight for Databases allows network attackers to reach the ForgeMBeanServerSupport module without credentials and execute arbitrary code as SYSTEM. The defect is a missing authentication check (CWE-306) in an exposed MBean server component, rated CVSS 9.8 and flagged act_now by vuln.today priority. No CISA KEV entry or public exploit code is identified in the provided data; practical exposure depends on whether the Foglight management/MBean service is reachable from untrusted networks.

RemediationAI

No vendor-released patch or fixed version is identified in the provided data; remediation should start with the vendor guidance in ZDI-26-854 (https://www.zerodayinitiative.com/advisories/ZDI-26-854/) and any Quest advisory it references. Until a fix is available, block network access to the Foglight management/MBean service from untrusted segments with firewall rules or network segmentation, and restrict it to trusted administrative hosts; the trade-off is that legitimate monitoring and management integrations must be allowlisted. If the ForgeMBeanServerSupport functionality is not required, disable or block access to that endpoint, accepting that dependent management features may stop working. Because the flaw is missing authentication in the service itself, these controls reduce exposure but do not correct the vulnerable code path; prioritize applying the vendor fix once released given the act_now priority.

Affected ProductsAI

Quest Foglight for Databases installations that expose the ForgeMBeanServerSupport module. The input does not provide specific version ranges or CPE identifiers, so affected versions cannot be enumerated from the available data; the ZDI advisory ZDI-26-854 (https://www.zerodayinitiative.com/advisories/ZDI-26-854/) is the disclosure reference. Deployments are most exposed where the Foglight management/MBean service is reachable from untrusted network segments; segmented or firewalled deployments have materially reduced exposure.

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Quest Foglight for Databases is a Java-based database monitoring platform, and ForgeMBeanServerSupport is the module implicated in exposing MBean server functionality. The root cause is CWE-306, Missing Authentication for Critical Function: access to the affected functionality is granted before any authentication check, so a remote caller who can reach the endpoint can invoke it. The supplied CVSS vector is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, matching the independent assessment, and successful exploitation is described as running code in the SYSTEM context. The advisory does not document the exact endpoint path, protocol details, or invocation sequence beyond the missing authentication gate, so the precise trigger is not described in the available sources. No CPE identifiers were provided, and no version-specific affected range is stated; the case originated as ZDI-CAN-29168 and is published as ZDI-26-854.

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Severity by source

Vendor (trendmicro) PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 9.8 CRITICAL

Missing authentication (CWE-306) on a network-exposed module gives AV:N/AC:L/PR:N/UI:N, and SYSTEM-context code execution yields C:H/I:H/A:H with scope unchanged.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (trendmicro).

CVSS VectorVendor: trendmicro

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Quest Foglight for Databases ForgeMBeanServerSupport Missing Authentication 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 ForgeMBeanServerSupport module. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-29168.

Executive ViewAI

Why It Matters

A critical vulnerability in Quest Foglight for Databases (CVE-2026-92188, CVSS 9.8) could allow an unauthenticated network attacker to execute arbitrary code with SYSTEM privileges. This puts sensitive database monitoring data and dependent systems at risk, and leadership should prioritize an immediate response to prevent potential operational disruption and data compromise.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: restrict network access to the Foglight management/MBean service to trusted networks only, disable or secure the exposed MBean server if not required, and monitor for unauthorized access attempts.

Threat Intelligence Overview

Prevalence
Medium
enterprise database-monitoring product, common in DB shops but not everywhere
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS N/A
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

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