What’s Vulnerable › Vulnerabilities

CVE-2019-6476: An error in QNAME minimization code can cause BIND to exit with an assertion failure

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-10-17 · updated 2026-06-17
• Weakness: CWE-617

Description

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.

Affected products

• ISC BIND: from 9.14.0 through 9.14.6; from 9.15.0 through 9.15.4

References

• https://kb.isc.org/docs/cve-2019-6476
• https://security.netapp.com/advisory/ntap-20191024-0004/
• https://support.f5.com/csp/article/K42238532?utm_source=f5support&amp%3Butm_medium=RSS
• https://kb.isc.org/docs/cve-2019-6476
• https://security.netapp.com/advisory/ntap-20191024-0004/
• https://support.f5.com/csp/article/K42238532?utm_source=f5support&amp%3Butm_medium=RSS

Get alerted when CVE-2019-6476 or the next vulnerability affects your stack