CVE-2011-2464: Unspecified vulnerability in ISC BIND 9 9.6.x before 9.6-ESV-R4-P3, 9.7.x before 9.7.3-P3, and 9.8.x before...

Security readout for executives and security teams

CVE-2011-2464 is a remote denial-of-service flaw in ISC BIND 9. A specially crafted DNS UPDATE request can crash the named daemon, potentially interrupting DNS service. For organizations still running the affected 2011-era BIND branches, the business risk is DNS availability, not data theft based on the provided sources. Exposure is most likely on internet-facing or internally reachable BIND authoritative or recursive DNS servers running the affected legacy versions. Systems using vendor-packaged BIND from Red Hat, Debian, Ubuntu, Slackware, SUSE, or Apple should be checked against the referenced advisories. Treat this as a high-priority availability issue if affected BIND versions remain in service. DNS outages can disrupt websites, email, authentication, and internal applications. If no affected legacy BIND is present, priority drops to documentation and evidence retention. Mitigation focus: Upgrade BIND to the fixed ISC versions or later.; Apply relevant vendor security updates for packaged BIND installations.; Check current ISC and OS vendor guidance before changing DNS configuration..

Prepared

Jun 27, 2026, 18:09 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.