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EUVD-2026-91204

🗓️ 02 Oct 2026 06:52:16Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 2 Views

Improper integrity check validation in Bouncy Castle bc-csharp allows content modification.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-15999
2 Oct 202606:52
–cve
cvelist
Cvelist
CVE-2026-15999 AES-CCM decryption accepts zero or out-of-range tag length, bypassing authentication
2 Oct 202606:52
–cvelist
nvd
NVD
CVE-2026-15999
2 Oct 202607:16
–nvd
ptsecurity
Positive Technologies
PT-2026-104100
2 Oct 202600:00
–ptsecurity
[
  {
    "enisaIdVendor": [
      {
        "id": "c206fdad-73be-309d-aee1-5b2190a4fc1b",
        "vendor": {
          "name": "Legion of the Bouncy Castle Inc."
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "96a86900-9320-3210-975f-8bef47299fd9",
        "product": {
          "name": "bc-csharp",
          "vendor": {
            "name": "Legion of the Bouncy Castle Inc."
          }
        },
        "product_version": "0 <2.7.0"
      }
    ]
  }
]

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02 Oct 2026 06:52Current
5.9Medium risk
Vulners AI Score5.9
CVSS 48.2
EPSS0.00227
2