FKIE_CVE-2026-27790
Vulnerability from fkie_nvd - Published: 2026-07-07 05:16 - Updated: 2026-08-14 18:51
Severity
Summary
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.
References
Impacted products
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "T-20 Readers",
"vendor": "Gallagher",
"versions": [
{
"lessThanOrEqual": "9.10",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "vCR9.50.260616a",
"status": "affected",
"version": "9.50",
"versionType": "custom"
},
{
"lessThan": "vCR9.40.260616a",
"status": "affected",
"version": "9.40",
"versionType": "custom"
},
{
"lessThan": "vCR9.30.260616a",
"status": "affected",
"version": "9.30",
"versionType": "custom"
},
{
"lessThan": "vCR9.20.260616a",
"status": "affected",
"version": "9.20",
"versionType": "custom"
}
]
}
],
"source": "disclosures@gallagher.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CB625DB4-746E-43B1-BAC9-EE3629BD361D",
"versionEndExcluding": "9.20.4349",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A9BFCEF8-9768-4049-B6AE-146EB73510B1",
"versionEndExcluding": "9.30.3983",
"versionStartIncluding": "9.30.1594",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*",
"matchCriteriaId": "9DF03990-81B3-4F40-98C8-3245AAA95BF8",
"versionEndExcluding": "9.40.3130",
"versionStartIncluding": "9.40.1359",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*",
"matchCriteriaId": "83B80C58-A4DC-4901-B877-A20A65177DE7",
"versionEndExcluding": "9.50.1587",
"versionStartIncluding": "9.50.978",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:gallagher:high_sec_t20_reader:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E178B318-4AA3-4F12-922B-1C72820CDE43",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:gallagher:high_sec_t20_reader_multi_tech:-:*:*:*:*:*:*:*",
"matchCriteriaId": "D4BB4ABB-1C97-407E-9706-0030633A09A3",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:gallagher:t20_alarms_terminal:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E2E608A4-183B-4D26-8E7D-ACCE4484CC67",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:gallagher:t20_mifare_terminal:-:*:*:*:*:*:*:*",
"matchCriteriaId": "0F2B6A64-BDF0-4300-A28A-D9946ECC0DAB",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:gallagher:t20_multi_tech_terminal:-:*:*:*:*:*:*:*",
"matchCriteriaId": "CA8C6AF8-53D1-4516-A44F-067390E1FA67",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Uncaught Exception (CWE-248)\u00a0in\u00a0the T20 Readers\u00a0allows an authenticated and authorized operator to trigger a restart by sending specific requests, resulting in a temporary denial of service.\u00a0Version of Command Centre affected:\n\n\n\n\n\n * 9.50 prior to vCR9.50.260616a (distributed in 9.50.1587(MR1))\n * 9.40 prior to vCR9.40.260616a (distributed in\u00a09.40.3130(MR3))\n * 9.30 prior to vCR9.30.260616a (distributed in 9.30.3983(MR5))\n * 9.20 prior to vCR9.20.260616a (distributed in 9.20.4349(MR7))\n * all versions of 9.10 and prior."
}
],
"id": "CVE-2026-27790",
"lastModified": "2026-08-14T18:51:31.907",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 2.7,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 1.2,
"impactScore": 1.4,
"source": "disclosures@gallagher.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-27790",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-07T13:37:17.360697Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-07-07T05:16:50.500",
"references": [
{
"source": "disclosures@gallagher.com",
"tags": [
"Vendor Advisory"
],
"url": "https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-27790"
}
],
"sourceIdentifier": "disclosures@gallagher.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-248"
}
],
"source": "disclosures@gallagher.com",
"type": "Secondary"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…