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Servers and applications

CVE-2019-18934

Unbound 1.6.4 through 1.9.4 contain a vulnerability in the ipsec module that can cause shell code execution after receiving a specially crafted answer. This issue can only be triggered if unbound was compiled with `--enable-ipsecmod` support, and ipsecmod is enabled and used in the configuration.

Severity
High 7.3
Published
19 Nov 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
3.2% in the next 30 daysHigher than 88% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
UnboundServers and applications · cpe:a:nlnetlabs:unbound
  • From 1.6.4 up to 1.9.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-18934
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-18934