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CVE-2026-41292 is a resource-consumption vulnerability in NLnet Labs Unbound affecting versions up to and including 1.25.0. The flaw is triggered when Unbound parses excessively long lists of incoming EDNS options in DNS queries. Processing these oversized option lists causes resolver threads to spend excessive time parsing the options and constructing internal data structures, allowing attacker-supplied queries to tie up worker threads. Under coordinated attack, this behavior can significantly degrade resolver performance and lead to denial of service. Unbound 1.25.1 fixes the issue by limiting the number of acceptable incoming EDNS options to 100.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
10 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.