CVE-2026-27790 — Gallagher / T-20 Readers

Description (CNA)

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 (CNA)

Vendor / product	Versions
Gallagher / T-20 Readers	affected 0 through 9.10; affected 9.50 before vCR9.50.260616a; affected 9.40 before vCR9.40.260616a; affected 9.30 before vCR9.30.260616a; affected 9.20 before vCR9.20.260616a

CWE

CWE-248

References

https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-27790

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.