CVE-2026-27844Network attack vector

Authenticated restart via uncaught diagnostic-interface exception

Published Jul 7, 2026 · Updated Jul 7, 2026

Uncaught exception in Gallagher Controller 6000 and Controller 7000 diagnostic web interface allows remote authenticated users to restart controllers. Specific requests to the diagnostic interface raise an exception that is not caught, causing the controller to restart and temporarily interrupt service. Exploitation requires an authorized operator and an enabled diagnostic web page, which Gallagher states is disabled by default; the bounded impact is a temporary controller restart.

CVSS severity2.7
Low
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncaught exception in Gallagher Controller 6000 and Controller 7000 diagnostic web interface allows remote authenticated users to restart controllers. Specific requests to the diagnostic interface raise an exception that is not caught, causing the controller to restart and temporarily interrupt service. Exploitation requires an authorized operator and an enabled diagnostic web page, which Gallagher states is disabled by default; the bounded impact is a temporary controller restart.

The record

CVE
CVE-2026-27844
Published
Jul 7, 2026
Updated
Jul 7, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-248, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 7, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

2.7Gallagher Group Ltd.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-248Uncaught Exception
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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