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Vulnerability · Published Jul 7, 2026 · Assigned by Gallagher

CVE-2026-27790

Low 2.7

In plain English

A low-severity security flaw in T-20 Readers from Gallagher. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)2.7Low
Exploit odds (30 days)0.4%top 67.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Gallagher T-20 Readers 0 – through 9.109.50 – before vCR9.50.260616a9.40 – before vCR9.40.260616a9.30 – before vCR9.30.260616a9.20 – before vCR9.20.260616a

Weakness: CWE-248 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

References