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Dell SCG EUVDEUVD-2026-74896

| CVE-2026-79965 MEDIUM
Permissive Regular Expression (CWE-625)
2026-09-09 security_alert@emc.com GHSA-477q-3g2m-8gch
5.3
CVSS 3.1 · Vendor: emc
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Attack ChainAIDerived

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

  1. Access
    Identify exposed SCG management interface
  2. Exploit
    Send crafted request with manipulated state parameters
  3. Execution
    Bypass access control check via CWE-625 flaw
  4. Impact
    Retrieve restricted configuration or telemetry data

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V2 - Validation and Business Logic Permissive regular expression
Exploitation Conditions

No authentication is required and no special client-side configuration is needed - exploitation requires only network-level reachability to the Dell SCG 5.0 Appliance or Application management interface. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms default-network-reachable exploitation with no prerequisite conditions. Limiting factors: impact is confined to partial confidentiality (read-only data exposure, C:L); integrity and availability are unaffected. Exploitation is bounded to SCG 5.0 versions specifically below 5.36.00.16 (Appliance) and 5.36.00.00 (Application); organizations running patched or later versions are not affected.

Impact

The provided CVSS base score is 5.3 (Medium), with AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - network-reachable, low complexity, no credentials, no user interaction, but impact limited strictly to partial confidentiality. This profile is a realistic reflection of the described unauthorized read-access primitive; the I:N and A:N metrics substantially reduce real-world risk compared to a full authentication bypass or RCE. No EPSS data, KEV listing, or public exploit code is available in the input, indicating no observed exploitation at time of analysis. The 'Authentication Bypass' tag in the input overstates the impact relative to what the CVSS vector and description support - the accessible impact is information disclosure, not full session or privilege compromise. Organizations running SCG appliances or applications in internet-exposed or segmented-but-shared-management-network postures carry the highest residual risk.

Exploit ScenarioDerived

A remote unauthenticated attacker sends a specially crafted network request to the Dell SCG management interface, supplying manipulated state parameters to bypass intended access controls. The server processes the manipulated state and returns restricted data - such as configuration details or telemetry - with no credentials required. No public exploit code is confirmed, so exploitation currently requires independent discovery of the state manipulation mechanism.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 09, 2026

External control of critical state data in Dell Secure Connect Gateway (SCG) 5.0 exposes sensitive information to remote unauthenticated attackers via network-accessible state manipulation. Affected are SCG 5.0 Appliance versions prior to 5.36.00.16 and SCG 5.0 Application versions prior to 5.36.00.00. Impact is limited to partial confidentiality loss (C:L) with no integrity or availability degradation, per CVSS; no public exploit code has been identified and this vulnerability is not listed in CISA KEV.

RemediationAI

Vendor-released patches are available: upgrade Dell SCG 5.0 Appliance to version 5.36.00.16 or later, and Dell SCG 5.0 Application to version 5.36.00.00 or later, per DSA-2026-382 at https://www.dell.com/support/kbdoc/en-in/000503426. As a compensating control prior to patching, restrict network access to the SCG management interface to trusted management VLANs or IP ranges only, reducing exposure of the vulnerable state-control endpoint to untrusted networks. Network-level ACLs should block unauthenticated external access to SCG ports; note this does not eliminate the vulnerability but significantly reduces the attack surface.

Affected VersionsENISA

Secure Connect Gateway 5.0 - Appliance 0 <5.36.00.16 or later
Secure Connect Gateway 5.0 - Application 0 <5.36.00.00 or later

Affects your stack

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Technical ContextAI · show details

Dell Secure Connect Gateway (SCG) is an enterprise remote support and telemetry automation appliance used to manage Dell infrastructure. CWE-625 as labeled here references External Control of Critical State Data, a class of flaw where an external, unauthenticated party can influence internal state that governs access decisions or data retrieval - for example, by supplying crafted parameters that bypass intended state checks and reach otherwise-protected data. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms the endpoint is reachable over the network without credentials and without special conditions. The vulnerability is distinct from classic authentication bypass in that integrity is unaffected (I:N), suggesting read-only exposure rather than full session or privilege compromise.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (emc) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vuln.today AI 5.3 MEDIUM

Network-reachable unauthenticated endpoint; no integrity or availability impact per description; C:L reflects partial read-only unauthorized data exposure.

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

Primary rating from Vendor (emc).

CVSS VectorVendor: emc

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

Lifecycle Timeline

1
Patch available
Sep 09, 2026 - 13:49 EUVD

DescriptionCVE.org

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an External Control of Critical State Data vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access.

Threat Intelligence Overview

EPSS Score
0.2%
Top 89% exploitable
Prevalence
Medium
enterprise Dell remote-support appliance, large-org deployments only
Data Quality
5 sources
Confidence: Medium

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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
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.

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