CVE-2026-27790
Gallagher Command Centre T20 Readers Uncaught Exception Denial of Service
Description
Uncaught Exception (CWE-248) in the T20 Readers allows an authenticated and authorized operator to trigger a restart by sending specific requests, resulting in a temporary denial of service. Version of Command Centre affected: * 9.50 prior to vCR9.50.260616a (distributed in 9.50.1587(MR1)) * 9.40 prior to vCR9.40.260616a (distributed in 9.40.3130(MR3)) * 9.30 prior to vCR9.30.260616a (distributed in 9.30.3983(MR5)) * 9.20 prior to vCR9.20.260616a (distributed in 9.20.4349(MR7)) * all versions of 9.10 and prior.
INFO
Published Date :
July 7, 2026, 5:16 a.m.
Last Modified :
July 7, 2026, 5:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-27790
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | 0c426f27-3ee1-4eff-be88-288d5a1822bc | ||||
| CVSS 3.1 | LOW | [email protected] |
Solution
- Update T20 Readers software to the latest version.
- Apply required patches for Command Centre.
- Restart affected T20 Readers services.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-27790.
| URL | Resource |
|---|---|
| https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-27790 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-27790 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-27790
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-27790 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-27790 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jul. 07, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Gallagher', 'product': 'T-20 Readers', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '9.10'}, {'status': 'affected', 'version': '9.50', 'lessThan': 'vCR9.50.260616a', 'versionType': 'custom'}, {'status': 'affected', 'version': '9.40', 'lessThan': 'vCR9.40.260616a', 'versionType': 'custom'}, {'status': 'affected', 'version': '9.30', 'lessThan': 'vCR9.30.260616a', 'versionType': 'custom'}, {'status': 'affected', 'version': '9.20', 'lessThan': 'vCR9.20.260616a', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}] Added Description Uncaught Exception (CWE-248) in the T20 Readers allows an authenticated and authorized operator to trigger a restart by sending specific requests, resulting in a temporary denial of service. Version of Command Centre affected: * 9.50 prior to vCR9.50.260616a (distributed in 9.50.1587(MR1)) * 9.40 prior to vCR9.40.260616a (distributed in 9.40.3130(MR3)) * 9.30 prior to vCR9.30.260616a (distributed in 9.30.3983(MR5)) * 9.20 prior to vCR9.20.260616a (distributed in 9.20.4349(MR7)) * all versions of 9.10 and prior. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L Added CWE CWE-248 Added Reference https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-27790