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CVE-2026-63569 MTI/A0 DHAgreement does not validate the peer's ephemeral value

🗓️ 02 Oct 2026 07:00:23Reported by bcorgType 
cvelist
 cvelist
🔗 www.cve.org👁 45 Views

Improper input validation in Bouncy Castle bc-csharp DHAgreement allows key recovery.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-63569
2 Oct 202608:00
–circl
cve
CVE
CVE-2026-63569
2 Oct 202607:00
–cve
euvd
EUVD
EUVD-2026-91220
2 Oct 202607:00
–euvd
kitploit
Kitploit
Anthropic-Credited-CVEs — Updated!
3 Sep 202601:25
–kitploit
mend
Mend
CVE-2026-63569
2 Oct 202607:00
–mend
nvd
NVD
CVE-2026-63569
2 Oct 202607:16
–nvd
osv_cve
osv_cve
CVE-2026-63569 MTI/A0 DHAgreement does not validate the peer's ephemeral value
2 Oct 202607:00
–osv_cve
ptsecurity
Positive Technologies
PT-2026-104107
2 Oct 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-63569: Improper Input Validation
2 Oct 202600:00
–rapid7
snyk
Snyk
Improper Input Validation
2 Oct 202608:23
–snyk
Rows per page
[
  {
    "vendor": "Legion of the Bouncy Castle Inc.",
    "product": "bc-csharp",
    "collectionURL": "https://www.nuget.org/packages/BouncyCastle.Cryptography",
    "packageName": "BouncyCastle.Cryptography",
    "repo": "https://github.com/bcgit/bc-csharp",
    "programFiles": [
      "crypto/src/crypto/agreement/DHAgreement.cs"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "2.7.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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