Is CVE-2024-43642 in the CISA KEV catalog?

No. CVE-2024-43642 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-43642?

CVE-2024-43642 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2024-43642?

CVE-2024-43642 has an EPSS score of 62.26% (99th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-43642?

Install KB5046633 for Windows 11 Version 22H2. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2024-43642

HIGHEPSS 99th pctl

7.5

CVSS v3

NVD

Description

Windows SMB Denial of Service Vulnerability

CWE-416Use After Free

How to fix

Remediation Available

Windows 11 Version 22H2Windows

Install:KB5046633Microsoft

Windows 11 Version 23H2Windows

Install:KB5046633Microsoft

Windows 11 Version 24H2Windows

Install:KB5046617Microsoft

Install:KB5046696Microsoft

Windows Server 2022Windows

Install:KB5046698Microsoft

Install:KB5046616Microsoft

Windows Server 2022 (Server Core installation)Windows

Install:KB5046616Microsoft

Install:KB5046698Microsoft

Windows Server 2022, 23H2 Edition (Server Core installation)Windows

Install:KB5046618Microsoft

Windows Server 2025Windows

Install:KB5046696Microsoft

Install:KB5046617Microsoft

Windows Server 2025 (Server Core installation)Windows

Install:KB5046696Microsoft

Install:KB5046617Microsoft

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

62.26%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Patch1

msrc.microsoft.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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 2024-11-18.