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Vulnerable Software

Vulnerability Details CVE-2026-10846

NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this vulnerability.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 8.9%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-10846
  • Nlnetlabs » Ldns » Version: 1.2.0
    cpe:2.3:a:nlnetlabs:ldns:1.2.0
  • Nlnetlabs » Ldns » Version: 1.2.1
    cpe:2.3:a:nlnetlabs:ldns:1.2.1
  • Nlnetlabs » Ldns » Version: 1.2.2
    cpe:2.3:a:nlnetlabs:ldns:1.2.2
  • Nlnetlabs » Ldns » Version: 1.3
    cpe:2.3:a:nlnetlabs:ldns:1.3
  • Nlnetlabs » Ldns » Version: 1.4.0
    cpe:2.3:a:nlnetlabs:ldns:1.4.0
  • Nlnetlabs » Ldns » Version: 1.4.1
    cpe:2.3:a:nlnetlabs:ldns:1.4.1
  • Nlnetlabs » Ldns » Version: 1.5.0
    cpe:2.3:a:nlnetlabs:ldns:1.5.0
  • Nlnetlabs » Ldns » Version: 1.5.1
    cpe:2.3:a:nlnetlabs:ldns:1.5.1
  • Nlnetlabs » Ldns » Version: 1.6.0
    cpe:2.3:a:nlnetlabs:ldns:1.6.0
  • Nlnetlabs » Ldns » Version: 1.6.1
    cpe:2.3:a:nlnetlabs:ldns:1.6.1
  • Nlnetlabs » Ldns » Version: 1.6.10
    cpe:2.3:a:nlnetlabs:ldns:1.6.10
  • Nlnetlabs » Ldns » Version: 1.6.11
    cpe:2.3:a:nlnetlabs:ldns:1.6.11
  • Nlnetlabs » Ldns » Version: 1.6.12
    cpe:2.3:a:nlnetlabs:ldns:1.6.12
  • Nlnetlabs » Ldns » Version: 1.6.13
    cpe:2.3:a:nlnetlabs:ldns:1.6.13
  • Nlnetlabs » Ldns » Version: 1.6.14
    cpe:2.3:a:nlnetlabs:ldns:1.6.14
  • Nlnetlabs » Ldns » Version: 1.6.15
    cpe:2.3:a:nlnetlabs:ldns:1.6.15
  • Nlnetlabs » Ldns » Version: 1.6.16
    cpe:2.3:a:nlnetlabs:ldns:1.6.16
  • Nlnetlabs » Ldns » Version: 1.6.17
    cpe:2.3:a:nlnetlabs:ldns:1.6.17
  • Nlnetlabs » Ldns » Version: 1.6.2
    cpe:2.3:a:nlnetlabs:ldns:1.6.2
  • Nlnetlabs » Ldns » Version: 1.6.3
    cpe:2.3:a:nlnetlabs:ldns:1.6.3
  • Nlnetlabs » Ldns » Version: 1.6.4
    cpe:2.3:a:nlnetlabs:ldns:1.6.4
  • Nlnetlabs » Ldns » Version: 1.6.5
    cpe:2.3:a:nlnetlabs:ldns:1.6.5
  • Nlnetlabs » Ldns » Version: 1.6.6
    cpe:2.3:a:nlnetlabs:ldns:1.6.6
  • Nlnetlabs » Ldns » Version: 1.6.7
    cpe:2.3:a:nlnetlabs:ldns:1.6.7
  • Nlnetlabs » Ldns » Version: 1.6.8
    cpe:2.3:a:nlnetlabs:ldns:1.6.8
  • Nlnetlabs » Ldns » Version: 1.6.9
    cpe:2.3:a:nlnetlabs:ldns:1.6.9
  • Nlnetlabs » Ldns » Version: 1.7.0
    cpe:2.3:a:nlnetlabs:ldns:1.7.0
  • Nlnetlabs » Ldns » Version: 1.7.1
    cpe:2.3:a:nlnetlabs:ldns:1.7.1
  • Nlnetlabs » Ldns » Version: 1.8.0
    cpe:2.3:a:nlnetlabs:ldns:1.8.0
  • Nlnetlabs » Ldns » Version: 1.8.1
    cpe:2.3:a:nlnetlabs:ldns:1.8.1
  • Nlnetlabs » Ldns » Version: 1.8.2
    cpe:2.3:a:nlnetlabs:ldns:1.8.2
  • Nlnetlabs » Ldns » Version: 1.8.3
    cpe:2.3:a:nlnetlabs:ldns:1.8.3
  • Nlnetlabs » Ldns » Version: 1.8.4
    cpe:2.3:a:nlnetlabs:ldns:1.8.4
  • Nlnetlabs » Ldns » Version: 1.9.0
    cpe:2.3:a:nlnetlabs:ldns:1.9.0


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