Is CVE-2019-11766 in the CISA KEV catalog?

No. CVE-2019-11766 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-11766?

CVE-2019-11766 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-11766?

CVE-2019-11766 has an EPSS score of 2.10% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-11766?

Upgrade dhcpcd5 on debian 11 to 7.1.0-2 or later.

CVE & CISA-KEV Catalog

CVE-2019-11766

CRITICALEPSS 79th pctl

9.8

CVSS v3

NVD

Description

dhcp6.c in dhcpcd before 6.11.7 and 7.x before 7.2.2 has a buffer over-read in the D6_OPTION_PD_EXCLUDE feature.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

dhcpcd5Debian

Fixed in:7.1.0-2CVE-2019-11766

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.10%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Patch4

Other references1

securityfocus.com

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	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 2024-11-21.