CVE-2025-11411 Detail
Awaiting Analysis
This CVE record has been marked for NVD enrichment efforts. DescriptionNLnet Labs Unbound up to and including version 1.24.0 is vulnerable to possible domain hijack attacks. Promiscuous NS RRSets that complement positive DNS replies in the authority section can be used to trick resolvers to update their delegation information for the zone. Usually these RRSets are used to update the resolver's knowledge of the zone's name servers. A malicious actor can exploit the possible poisonous effect by injecting NS RRSets (and possibly their respective address records) in a reply. This could be done for example by trying to spoof a packet or fragmentation attacks. Unbound would then proceed to update the NS RRSet data it already has since the new data has enough trust for it, i.e., in-zone data for the delegation point. Unbound 1.24.1 includes a fix that scrubs unsolicited NS RRSets (and their respective address records) from replies mitigating the possible poison effect. Metrics
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CVSS 4.0 Severity and Vector Strings:
CNA: NLnet Labs
CVSS-BT 5.7 MEDIUM
Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:H/E:P
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Weakness Enumeration
Quick InfoCVE Dictionary Entry:CVE-2025-11411 NVD Published Date: 10/22/2025 NVD Last Modified: 10/22/2025 Source: NLnet Labs |