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CVE-2026-29143

🗓️ 02 Apr 2026 08:49:31Reported by NCSC.chType 
cve
 cve
🔗 web.nvd.nist.gov👁 6 Views

CVE-2026-29143: SEPPmail before 15.0.3 fails to authenticate inner S Mime messages, enabling header impersonation.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-29143
2 Apr 202608:49
attackerkb
Circl
CVE-2026-29143
2 Apr 202610:55
circl
CNNVD
SEPPmail Secure Email Gateway 安全漏洞
2 Apr 202600:00
cnnvd
Cvelist
CVE-2026-29143 S/MIME Decryption Impersonation
2 Apr 202608:49
cvelist
EUVD
EUVD-2026-18166
2 Apr 202609:30
euvd
NVD
CVE-2026-29143
2 Apr 202609:16
nvd
Positive Technologies
PT-2026-29706
2 Apr 202600:00
ptsecurity
RedhatCVE
CVE-2026-29143
3 Apr 202610:57
redhatcve
Vulnrichment
CVE-2026-29143 S/MIME Decryption Impersonation
2 Apr 202608:49
vulnrichment
NVD
CNA
[
  {
    "vendor": "SEPPmail",
    "product": "Secure Email Gateway",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "15.0.3",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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17 Jun 2026 10:29Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.19.1
CVSS 47.8
EPSS0.0025
SSVC
6