Is CVE-2020-14305 in the CISA KEV catalog?

No. CVE-2020-14305 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-14305?

CVE-2020-14305 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2020-14305?

CVE-2020-14305 has an EPSS score of 5.11% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-14305?

Upgrade linux on debian 11 to 4.12.6-1 or later.

CVE & CISA-KEV Catalog

CVE-2020-14305

HIGHEPSS 91th pctl

8.1

CVSS v3

NVD

Description

An out-of-bounds memory write flaw was found in how the Linux kernel’s Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

linuxDebian

Fixed in:4.12.6-1CVE-2020-14305

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

5.11%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Exploit1

bugs.openvz.org

Third-Party Advisory1

security.netapp.com

Other references1

patchwork.ozlabs.org

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	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.