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CVE-2026-76163 is a reachable assertion vulnerability in BIND 9 named. When BIND is started with a configuration that does not contain a global options block, processing an inbound DNS query with QTYPE TKEY can trigger an assertion failure and terminate named unexpectedly. The issue affects BIND 9.20.0 through 9.20.27, BIND 9.21.0 through 9.21.25, and affected BIND Supported Preview Edition releases.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity remotely exploitable BIND 9 denial-of-service vulnerability involving QTYPE TKEY queries.
A denial-of-service vulnerability in BIND 9 where a TKEY DNS query can trigger an assertion failure and unexpected termination when named.conf lacks a global options block.
A high-severity, remotely exploitable denial-of-service vulnerability in BIND 9. A TKEY query can trigger an assertion failure and terminate named when its configuration lacks a global options block.
A remotely exploitable, low-complexity, unauthenticated vulnerability affecting Debian Linux 12.0, 13.0, and 14.0. The provided CVSS v3 vector indicates no confidentiality or integrity impact but high availability impact.
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.