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EUVD-2026-67674

🗓️ 28 Aug 2026 10:12:27Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 3 Views

Unauthenticated DoS in Dovecot via IMAP ID command with excessive parameters causing OOM.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-42391
28 Aug 202610:12
alpinelinux
cve
CVE
CVE-2026-42391
28 Aug 202610:12
cve
cvelist
Cvelist
CVE-2026-42391
28 Aug 202610:12
cvelist
debiancve
Debian CVE
CVE-2026-42391
28 Aug 202610:12
debiancve
nvd
NVD
CVE-2026-42391
28 Aug 202612:16
nvd
osv
OSV
DEBIAN-CVE-2026-42391
28 Aug 202612:16
osv
ptsecurity
Positive Technologies
PT-2026-83067
28 Aug 202600:00
ptsecurity
vulnrichment
Vulnrichment
CVE-2026-42391
28 Aug 202610:12
vulnrichment
[
  {
    "enisaIdVendor": [
      {
        "id": "04e3f839-8338-3d18-98eb-261e17e546a7",
        "vendor": {
          "name": "Open-Xchange GmbH"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "52ae95d7-861b-3531-987e-c47f5c2540f5",
        "product": {
          "name": "OX Dovecot Pro",
          "vendor": {
            "name": "Open-Xchange GmbH"
          }
        },
        "product_version": "3.0.0 <3.0.7"
      },
      {
        "id": "b6283f2a-2eab-33e4-afdb-995216bd7551",
        "product": {
          "name": "OX Dovecot Pro",
          "vendor": {
            "name": "Open-Xchange GmbH"
          }
        },
        "product_version": "3.1.0 <3.1.6"
      },
      {
        "id": "c8675885-f27b-3f77-b98f-0f1a4494c412",
        "product": {
          "name": "OX Dovecot CE",
          "vendor": {
            "name": "Open-Xchange GmbH"
          }
        },
        "product_version": "2.3.0 <2.4.5"
      },
      {
        "id": "f266a311-84b8-37c0-be91-aee0da4337ae",
        "product": {
          "name": "OX Dovecot Pro",
          "vendor": {
            "name": "Open-Xchange GmbH"
          }
        },
        "product_version": "2.3.0 <2.3.22.2"
      }
    ]
  }
]

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28 Aug 2026 15:54Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
SSVC
3