8.2

CVE-2026-10846

Insufficient verification that responses belong to a query

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerNLnet Labs
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Produkt ldns
Default Statusunaffected
Version 1.2.0
Version < 1.9.1
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.043
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
sep@nlnetlabs.nl 8.2 0 0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-346 Origin Validation Error

The product does not properly verify that the source of data or communication is valid.

https://www.nlnetlabs.nl/downloads/ldns/CVE-2026-10846.txt
http://www.openwall.com/lists/oss-security/2026/06/10/2