Is CVE-2019-16866 in the CISA KEV catalog?

No. CVE-2019-16866 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-16866?

CVE-2019-16866 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-16866?

CVE-2019-16866 has an EPSS score of 3.51% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-16866?

Upgrade unbound on debian 11 to 1.9.4-1 or later.

CVE & CISA-KEV Catalog

CVE-2019-16866

HIGHEPSS 88th pctl

7.5

CVSS v3

NVD

Description

Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query. The source IP address of the query must match an access-control rule.

CWE-755 CWE-908

How to fix

Remediation Available

unboundDebian

Fixed in:1.9.4-1CVE-2019-16866

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

3.51%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

nlnetlabs.nl

Third-Party Advisory1

usn.ubuntu.com

Release Notes1

github.com

Other references4

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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 2024-11-21.