Is CVE-2024-21435 in the CISA KEV catalog?

No. CVE-2024-21435 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-21435?

CVE-2024-21435 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2024-21435?

CVE-2024-21435 has an EPSS score of 2.03% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-21435?

Install KB5035853 for Windows 11 Version 22H2. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2024-21435

HIGHEPSS 79th pctl

8.8

CVSS v3

NVD

Description

Windows OLE Remote Code Execution Vulnerability

CWE-426

How to fix

Remediation Available

Windows 11 Version 22H2Windows

Install:KB5035853Microsoft

Windows 11 Version 23H2Windows

Install:KB5035853Microsoft

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.03%probability of exploitation in 30 days

79thpercentile

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

References

Vendor Advisory1

msrc.microsoft.com

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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 2024-12-27.