Vulnerability-Lookup

FKIE_CVE-2026-20757

Vulnerability from fkie_nvd - Published: 2026-03-03 03:15 - Updated: 2026-08-18 15:54

Severity

2.5 (Low) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Summary

Improper Locking vulnerability (CWE-667) in Gallagher Morpho integration allows a privileged operator to cause a limited denial-of-service in the Command Centre Server. This issue affects Command Centre Server: 9.40 prior to vEL9.40.1976(MR1), 9.30 prior to vEL9.30.3382 (MR4), 9.20 prior to vEL9.20.3783 (MR6), 9.10 prior to vEL9.10.4647 (MR9), all versions of 9.00 and prior.

References

	URL	Tags
	disclosures@gallagher.com	https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-20757	Vendor Advisory

Impacted products

Vendor	Product	Version
gallagher	command_centre	*
gallagher	command_centre	*
gallagher	command_centre	*
gallagher	command_centre	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "product": "Command Centre Server",
          "vendor": "Gallagher",
          "versions": [
            {
              "lessThanOrEqual": "9.00",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "9.40.1976(MR1)",
              "status": "affected",
              "version": "9.40",
              "versionType": "custom"
            },
            {
              "lessThan": "9.30.3382 (MR4)",
              "status": "affected",
              "version": "9.30",
              "versionType": "custom"
            },
            {
              "lessThan": "9.20.3783 (MR6)",
              "status": "affected",
              "version": "9.20",
              "versionType": "custom"
            },
            {
              "lessThan": "9.10.4647 (MR9)",
              "status": "affected",
              "version": "9.10",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "disclosures@gallagher.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4A4C2E06-7573-425D-B10D-F7ACD09A7D67",
              "versionEndExcluding": "9.10.4647",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "756E179B-2EF0-409A-80AF-98EC7F1F23E4",
              "versionEndExcluding": "9.20.3783",
              "versionStartIncluding": "9.20.1043",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gallagher:command_centre:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5B5EEDA8-AB72-49E4-99F0-F3A29712ECC9",
              "versionEndExcluding": "9.30.3382",
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              "vulnerable": true
            },
            {
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              "versionEndExcluding": "9.40.1976",
              "versionStartIncluding": "9.40.1359",
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          "negate": false,
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Locking\u00a0vulnerability (CWE-667) in\u00a0Gallagher Morpho integration allows a privileged operator to cause a limited denial-of-service in the Command Centre Server.\n\n\n\nThis issue affects Command Centre Server: \n\n9.40 prior to vEL9.40.1976(MR1), 9.30 prior to vEL9.30.3382 (MR4), 9.20 prior to vEL9.20.3783 (MR6), 9.10 prior to vEL9.10.4647 (MR9), all versions of 9.00 and prior."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de bloqueo indebido (CWE-667) en la integraci\u00f3n de Gallagher Morpho permite a un operador privilegiado causar una denegaci\u00f3n de servicio limitada en el servidor de Command Centre.\n\nEste problema afecta al servidor de Command Centre:\n9.40 anterior a vEL9.40.1976(MR1), 9.30 anterior a vEL9.30.3382 (MR4), 9.20 anterior a vEL9.20.3783 (MR6), 9.10 anterior a vEL9.10.4647 (MR9), todas las versiones de 9.00 y anteriores."
    }
  ],
  "id": "CVE-2026-20757",
  "lastModified": "2026-08-18T15:54:36.190",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 2.5,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 1.4,
        "source": "disclosures@gallagher.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-20757",
          "options": [
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            },
            {
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            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-03T15:38:55.859473Z",
          "version": "2.0.3"
        }
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    ]
  },
  "published": "2026-03-03T03:15:54.377",
  "references": [
    {
      "source": "disclosures@gallagher.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-20757"
    }
  ],
  "sourceIdentifier": "disclosures@gallagher.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-667"
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      ],
      "source": "disclosures@gallagher.com",
      "type": "Secondary"
    }
  ]
}

CVE-2026-20757 (GCVE-0-2026-20757)

Vulnerability from cvelistv5 – Published: 2026-03-03 02:40 – Updated: 2026-03-03 15:43

Summary

Severity

2.5 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-03 15:38 UTC

CWE

CWE-667 - Improper Locking

Assigner

Gallagher icscert root

References

1 reference

URL	Tags
https://security.gallagher.com/en-NZ/Security-Adv…

Impacted products

1 product

Vendor	Product	Version
Gallagher	Command Centre Server	Affected: 0 , ≤ 9.00 (custom) Affected: 9.40 , < 9.40.1976(MR1) (custom) Affected: 9.30 , < 9.30.3382 (MR4) (custom) Affected: 9.20 , < 9.20.3783 (MR6) (custom) Affected: 9.10 , < 9.10.4647 (MR9) (custom)

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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                "id": "CVE-2026-20757",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-03T15:38:55.859473Z",
                "version": "2.0.3"
              },
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            }
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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      ],
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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.

Detection rules are retrieved from Rulezet.

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.

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.