CVE-2026-78489Network attack vector

Unauthenticated protection bypass via improper certificate validation

Published Sep 9, 2026 · Updated Sep 9, 2026

Improper certificate validation in Dell Secure Connect Gateway 5.0 allows remote attackers to bypass a protection mechanism. Application Edition before 5.36.00.00 and Virtual Edition before 5.36.00.16 are affected; Dell has not disclosed the affected connection, certificate field, trust decision, or validation step. Exploitation requires unauthenticated remote access under high-complexity conditions, and the reported consequence is confidential-information exposure without data modification or service interruption.

CVSS severity5.9
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in Dell Secure Connect Gateway 5.0 allows remote attackers to bypass a protection mechanism. Application Edition before 5.36.00.00 and Virtual Edition before 5.36.00.16 are affected; Dell has not disclosed the affected connection, certificate field, trust decision, or validation step. Exploitation requires unauthenticated remote access under high-complexity conditions, and the reported consequence is confidential-information exposure without data modification or service interruption.

The record

CVE
CVE-2026-78489
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
Dell Technologies
Product
Secure Connect Gateway - Virtual Edition
Classifications
CWE-295
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <5.36.00.16 or later

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Dell Technologies · Secure Connect Gateway - Virtual Editionversion=0 <5.36.00.16 or later
Dell Technologies · Secure Connect Gateway - Application Editionversion=0 <5.36.00.00 or later

Published CVSS scores

5.9Dell TechnologiesCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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