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NLnet Labs Unbound versions 1.16.2 through 1.25.0 improperly handle cached delegation NS resource records in a ghost domain names attack variant. A client NS query can cause the resolver to replace an expired parent-side referral NS RRset in cache with the child zone apex NS RRset, extending the effective ghost-domain window by up to the configured cache-max-ttl value. When harden-referral-path is enabled, Unbound performs the relevant NS query implicitly. Unbound 1.25.1 prevents extension of TTLs for parent NS records irrespective of record trust.
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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.
22 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Unknown; the content lists this CVE as an affected-package advisory reference but provides no vulnerability description.
A remotely exploitable, low-complexity vulnerability requiring no privileges or user interaction, with high integrity impact and no stated confidentiality or availability impact.
A TencentOS Server 3 vulnerability covered by Tencent security advisory TSSA-2026-0887. The provided CVSS v2 vector indicates a network-accessible flaw with low attack complexity and complete integrity impact.
Unknown
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.