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CVE-2026-12413 IKEv2 Denial of Service via malformed fragmentation

🗓️ 02 Jul 2026 21:19:22Reported by libreswanType 
cvelist
 cvelist
🔗 www.cve.org👁 14 Views

Malformed IKEv2 fragment crashes Libreswan and enables denial of service if fragmentation is not disabled.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-12413
2 Jul 202621:19
attackerkb
Circl
CVE-2026-12413
3 Jul 202602:16
circl
CVE
CVE-2026-12413
2 Jul 202621:19
cve
EUVD
EUVD-2026-41439
3 Jul 202600:31
euvd
NVD
CVE-2026-12413
2 Jul 202622:16
nvd
OSV
DEBIAN-CVE-2026-12413
3 Jul 202609:48
osv
Positive Technologies
PT-2026-55314
2 Jul 202600:00
ptsecurity
[
  {
    "vendor": "The Libreswan Project",
    "product": "libreswan",
    "versions": [
      {
        "version": "4.6",
        "status": "affected",
        "lessThanOrEqual": "5.3",
        "versionType": "semver"
      },
      {
        "version": "5.3.1",
        "status": "unaffected",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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