All vulnerabilities

Servers and applications

CVE-2016-6170

ISC BIND through 9.9.9-P1, 9.10.x through 9.10.4-P1, and 9.11.x through 9.11.0b1 allows primary DNS servers to cause a denial of service (secondary DNS server crash) via a large AXFR response, and possibly allows IXFR servers to cause a denial of service (IXFR client crash) via a large IXFR response and allows remote authenticated users to cause a denial of service (primary DNS server crash) via…

Severity
Medium 6.5
Published
6 Jul 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
41% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · Needs a user account · No user action needed
Attacker can
Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Sources
NVD

Description

ISC BIND through 9.9.9-P1, 9.10.x through 9.10.4-P1, and 9.11.x through 9.11.0b1 allows primary DNS servers to cause a denial of service (secondary DNS server crash) via a large AXFR response, and possibly allows IXFR servers to cause a denial of service (IXFR client crash) via a large IXFR response and allows remote authenticated users to cause a denial of service (primary DNS server crash) via a large UPDATE message.

From NVD.

Affected software

SoftwareAffected versions
BIND 9Servers and applications · cpe:a:isc:bind
  • Version 9.11.0-b1
  • Version 9.11.0-a3
  • Version 9.11.0-a2
  • Version 9.11.0-a1
All 12 release lines
  • From 9.0 up to 9.9.8
  • Version 9.9.9-beta1
  • Version 9.9.9-beta2
  • Version 9.9.9
  • Version 9.9.9-p1
  • From 9.10.0 up to 9.10.3
  • Version 9.10.4
  • Version 9.10.4-p1
  • Version 9.11.0-a1
  • Version 9.11.0-a2
  • Version 9.11.0-a3
  • Version 9.11.0-b1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-6170
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-6170