CVE record · CVE-2026-27790

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.

CVSS 2.7 LowEPSS 0.0039 · 32nd percentile

Published by the CVE Program (CNA: Gallagher) at 7 Jul 2026, 03:49 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Gallagher	T-20 Readers	affected 9.10 and earlier custom affected 9.50 to before vCR9.50.260616a custom affected 9.40 to before vCR9.40.260616a custom affected 9.30 to before vCR9.30.260616a custom affected 9.20 to before vCR9.20.260616a custom Other versions: unaffected

Identifiers: CVE-2026-27790
CNA: Gallagher
Weakness (CWE): CWE-248
Tags: Gallagher T-20 Readers
CWE-248
Published: 7 Jul 2026
Updated: 7 Jul 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
2.7	Low	3.1	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L	CNA (Gallagher)

CISA KEV Not listed.
EPSS 0.0039, the 32nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 7 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

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

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.