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CVE-2026-11605 is a remotely exploitable resource-exhaustion vulnerability in BIND 9 DNSSEC validation. The validator processes all RRSIG records supplied in an answer, including valid signatures that are not required to validate the answer. An authoritative zone returning a large number of valid but superfluous RRSIG records can therefore cause disproportionate signature-validation CPU consumption. The issue affects BIND 9.20.0 through 9.20.24, BIND 9.21.0 through 9.21.23, and affected BIND Supported Preview Edition releases.
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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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A BIND resource-exhaustion vulnerability that can consume excessive CPU through unnecessary signature validation checks.
A high-severity remote resource exhaustion vulnerability in BIND 9's DNSSEC validation logic that can cause disproportionate CPU consumption by forcing validation of unnecessary RRSIG records.
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.