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Servers and applications

CVE-2019-6469

An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -> 9.11.6-S1 of BIND 9 Supported Preview Edition.

Severity
High 7.5
Published
9 Oct 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2% in the next 30 daysHigher than 80% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
BIND 9Servers and applications · cpe:a:isc:bind
  • Version 9.10.5-s1
  • Version 9.11.6-s1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-6469
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-6469