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CVE-2026-18664 Wrong interpretation of ACL ranges

🗓️ 26 Aug 2026 08:34:22Reported by NLnet LabsType 
cve
 cve
🔗 www.cve.org👁 5 Views

NSD ACL range endianness mismatch on little-endian systems may allow or deny incorrect IPs.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-18664 Wrong interpretation of ACL ranges
26 Aug 202608:34
cvelist
euvd
EUVD
EUVD-2026-66347
26 Aug 202608:34
euvd
ptsecurity
Positive Technologies
PT-2026-81985
26 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-18664
26 Aug 202612:02
redhatcve
vulnrichment
Vulnrichment
CVE-2026-18664 Wrong interpretation of ACL ranges
26 Aug 202608:34
vulnrichment
[
  {
    "vendor": "NLnet Labs",
    "product": "NSD",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "version": "3.0.0",
        "status": "affected",
        "lessThan": "4.15.1",
        "versionType": "semver"
      }
    ]
  }
]

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26 Aug 2026 08:37Current
5.5Medium risk
Vulners AI Score5.5
CVSS 48.2
SSVC
5