CVE-2019-18934
CVSS v3
7.3
HIGH
EPSS Score
3.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2019-11-19
Frequently asked questions
What is 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.
Is CVE-2019-18934 actively exploited?
Active exploitation of CVE-2019-18934 has not been confirmed. Its EPSS score was 3.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-18934?
CVE-2019-18934 has a CVSS v3 base score of 7.3 (HIGH severity).
Is CVE-2019-18934 affecting your environment?
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