Is CVE-2016-8864 in the CISA KEV catalog?

No. CVE-2016-8864 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-8864?

CVE-2016-8864 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2016-8864?

CVE-2016-8864 has an EPSS score of 38.73% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-8864?

Upgrade bind9 on debian 11 to 1:9.10.3.dfsg.P4-11 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2016-8864

HIGHEPSS 98th pctl

7.5

CVSS v3

NVD

Description

named in ISC BIND 9.x before 9.9.9-P4, 9.10.x before 9.10.4-P4, and 9.11.x before 9.11.0-P1 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a DNAME record in the answer section of a response to a recursive query, related to db.c and resolver.c.

CWE-617

How to fix

Remediation Available

bind9Debian

Fixed in:1:9.10.3.dfsg.P4-11CVE-2016-8864

bind9Ubuntu

Fixed in:1:9.9.5.dfsg-3ubuntu0.10USN-3119-1

Fixed in:1:9.10.3.dfsg.P4-8ubuntu1.2USN-3119-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

38.73%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Vendor Advisory1

kb.isc.org

Third-Party Advisory12

Other references4

Related Vulnerabilities

Other CWE-617 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-8617	High	7.5	93%	-	Fix
CVE-2020-36222	High	7.5	78%	-	Fix
CVE-2006-5779	High	7.5	75%	-	Fix
CVE-2021-27212	High	7.5	64%	-	Fix
CVE-2018-5740	High	7.5	59%	-	Fix
CVE-2023-28425	Medium	5.5	55%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.