Vulnerability-Lookup

OXDC-ADV-2025-0001

Vulnerability from csaf_ox - Published: 2025-10-31 00:00 - Updated: 2025-11-27 00:00

Summary

OX Dovecot Pro Security Advisory OXDC-ADV-2025-0001

Severity

High

Notes

Terms of Use: This content is licensed under the Creative Commons Attribution-NoDerivatives 4.0 International License (https://creativecommons.org/licenses/by-nd/4.0/). If you distribute this content, you must provide attribution to Open-Xchange GmbH and provide a link to the original. You may not distribute a modified version of this content.

CVE-2025-30189

When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong cached information to be used for these users.

7.4 (High)


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

CWE-1250 - Improper Preservation of Consistency Between Independent Representations of Shared State

Affected products

Last affected 1 product

Product	Identifier	Version	Remediation
Dovecot CE 2.4.0 Open-Xchange GmbH / Dovecot CE	`cpe:2.3:a:open-xchange:dovecot:2.4.0:::::::*`	2.4.0	Vendor Fix

First fixed 1 product

Product	Identifier	Version	Remediation
Dovecot CE 2.4.2 Open-Xchange GmbH / Dovecot CE	`cpe:2.3:a:open-xchange:dovecot:2.4.2:::::::*`	2.4.2

Threats

Impact After cached login, all subsequent logins are for same user.

Exploit Status No publicly available exploits are known.

References

4 references

URL	Category
https://documentation.open-xchange.com/dovecot/se…	self
https://documentation.open-xchange.com/dovecot/se…	self
https://documentation.open-xchange.com/dovecot/se…	self
https://documentation.open-xchange.com/dovecot/se…	self

Acknowledgments

Erik <erik@broadlux.com>

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "HIGH"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Open-Xchange GmbH. All rights reserved.",
      "tlp": {
        "label": "GREEN",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution-NoDerivatives 4.0 International License (https://creativecommons.org/licenses/by-nd/4.0/). If you distribute this content, you must provide attribution to Open-Xchange GmbH and provide a link to the original. You may not distribute a modified version of this content.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "name": "Open-Xchange GmbH",
      "namespace": "https://open-xchange.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "Canonical CSAF document",
        "url": "https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2025/oxdc-adv-2025-0001.json"
      },
      {
        "category": "self",
        "summary": "Markdown representation",
        "url": "https://documentation.open-xchange.com/dovecot/security/advisories/md/2025/oxdc-adv-2025-0001.md"
      },
      {
        "category": "self",
        "summary": "HTML representation",
        "url": "https://documentation.open-xchange.com/dovecot/security/advisories/html/2025/oxdc-adv-2025-0001.html"
      },
      {
        "category": "self",
        "summary": "Plain-text representation",
        "url": "https://documentation.open-xchange.com/dovecot/security/advisories/txt/2025/oxdc-adv-2025-0001.txt"
      }
    ],
    "title": "OX Dovecot Pro Security Advisory OXDC-ADV-2025-0001",
    "tracking": {
      "current_release_date": "2025-11-27T00:00:00+00:00",
      "generator": {
        "date": "2025-11-27T10:32:50+00:00",
        "engine": {
          "name": "OX CSAF",
          "version": "1.0.0"
        }
      },
      "id": "OXDC-ADV-2025-0001",
      "initial_release_date": "2025-10-31T00:00:00+00:00",
      "revision_history": [
        {
          "date": "2025-10-31T00:00:00+00:00",
          "number": "1",
          "summary": "Initial release"
        },
        {
          "date": "2025-10-31T00:00:00+00:00",
          "number": "2",
          "summary": "Public release"
        },
        {
          "date": "2025-10-31T00:00:00+00:00",
          "number": "3",
          "summary": "Fix versions"
        },
        {
          "date": "2025-10-31T00:00:00+00:00",
          "number": "4",
          "summary": "Public release"
        },
        {
          "date": "2025-10-31T00:00:00+00:00",
          "number": "5",
          "summary": "Public release"
        },
        {
          "date": "2025-11-27T00:00:00+00:00",
          "number": "6",
          "summary": "Public release"
        },
        {
          "date": "2025-11-27T00:00:00+00:00",
          "number": "7",
          "summary": "Public release"
        }
      ],
      "status": "final",
      "version": "7"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2.4.0",
                "product": {
                  "name": "Dovecot CE 2.4.0",
                  "product_id": "OXDC-CE_2.4.0",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:open-xchange:dovecot:2.4.0:*:*:*:*:*:*:*"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "2.4.2",
                "product": {
                  "name": "Dovecot CE 2.4.2",
                  "product_id": "OXDC-CE_2.4.2",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:open-xchange:dovecot:2.4.2:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Dovecot CE"
          }
        ],
        "category": "vendor",
        "name": "Open-Xchange GmbH"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Erik  \u003cerik@broadlux.com\u003e"
          ]
        }
      ],
      "cve": "CVE-2025-30189",
      "cwe": {
        "id": "CWE-1250",
        "name": "Improper Preservation of Consistency Between Independent Representations of Shared State"
      },
      "discovery_date": "2025-07-25T01:04:36+03:00",
      "ids": [
        {
          "system_name": "JIRA OX Bug",
          "text": "DOV-7830"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong cached information to be used for these users."
        }
      ],
      "product_status": {
        "first_fixed": [
          "OXDC-CE_2.4.2"
        ],
        "last_affected": [
          "OXDC-CE_2.4.0"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-10-29T00:00:00+00:00",
          "details": "Install fixed version or disable caching either globally or for the impacted passdb/userdb drivers.",
          "product_ids": [
            "OXDC-CE_2.4.0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "OXDC-CE_2.4.0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "After cached login, all subsequent logins are for same user."
        },
        {
          "category": "exploit_status",
          "details": "No publicly available exploits are known."
        }
      ],
      "title": "v2.4 regression: auth cache broken with several passdb / userdb"
    }
  ]
}

CVE-2025-30189 (GCVE-0-2025-30189)

Vulnerability from cvelistv5 – Published: 2025-10-31 09:02 – Updated: 2026-03-27 12:33

Summary

When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong cached information to be used for these users. After cached login, all subsequent logins are for same user. Install fixed version or disable caching either globally or for the impacted passdb/userdb drivers. No publicly available exploits are known.

Severity

7.4 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-31 18:29 UTC

CWE

CWE-1250 - Improper Preservation of Consistency Between Independent Representations of Shared State

Assigner

OX mitre root

References

3 references

URL	Tags
https://documentation.open-xchange.com/dovecot/se…	vendor-advisory
http://seclists.org/fulldisclosure/2025/Oct/29
http://www.openwall.com/lists/oss-security/2025/10/29/4

Impacted products

1 product

Vendor	Product	Version
Open-Xchange GmbH	OX Dovecot Pro	Affected: 0 , ≤ 3.1.0 (semver) Affected: 0 , ≤ 2.4.0 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:09:57.944Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://seclists.org/fulldisclosure/2025/Oct/29"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/29/4"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-30189",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-31T18:29:20.964859Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-31T18:37:37.432Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "core"
          ],
          "product": "OX Dovecot Pro",
          "vendor": "Open-Xchange GmbH",
          "versions": [
            {
              "lessThanOrEqual": "3.1.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "2.4.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong cached information to be used for these users. After cached login, all subsequent logins are for same user. Install fixed version or disable caching either globally or for the impacted passdb/userdb drivers. No publicly available exploits are known."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1250",
              "description": "Improper Preservation of Consistency Between Independent Representations of Shared State",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-27T12:33:18.387Z",
        "orgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
        "shortName": "OX"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json"
        }
      ],
      "source": {
        "defect": "DOV-7830",
        "discovery": "EXTERNAL"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
    "assignerShortName": "OX",
    "cveId": "CVE-2025-30189",
    "datePublished": "2025-10-31T09:02:33.273Z",
    "dateReserved": "2025-03-18T08:39:46.884Z",
    "dateUpdated": "2026-03-27T12:33:18.387Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.