Vulnerability in Isc Bind

CVE-2019-6476

A defect in code added to support QNAME minimization can cause named to exit with an assertion failure if a forwarder returns a referral rather than resolving the query. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.

EPSS: 0.029 (85.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-6476?
CVE-2019-6476 is a medium-severity vulnerability in Isc Bind, classified under Reachable Assertion. CVSS score: 5.9/10. Published 2019-10-17.
How severe is CVE-2019-6476?
Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2019-6476 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.