Is CVE-2025-53733 in the CISA KEV catalog?

No. CVE-2025-53733 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-53733?

CVE-2025-53733 has a CVSS v3 base score of 8.4 (HIGH).

What is the EPSS score for CVE-2025-53733?

CVE-2025-53733 has an EPSS score of 0.50% (40th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-53733?

Install KB5002771 for Microsoft SharePoint Enterprise Server 2016. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2025-53733

HIGH

8.4

CVSS v3

NVD

Description

Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CWE-681

How to fix

Remediation Available

Microsoft SharePoint Enterprise Server 2016Microsoft

Install:KB5002771Microsoft

Install:KB5002772Microsoft

Microsoft SharePoint Server 2019Microsoft

Install:KB5002769Microsoft

Install:KB5002770Microsoft

Microsoft Word 2016Microsoft

Install:KB5002763Microsoft

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.50%probability of exploitation in 30 days

40thpercentile

Low risk: more likely to be exploited than 40% of all known CVEs.

References

Vendor Advisory1

msrc.microsoft.com

Related Vulnerabilities

Other CWE-681 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-0231	High	8.8	37%	-	-
CVE-2016-3074	Critical	9.8	37%	-	Fix
CVE-2022-34169	High	7.5	34%	-	Fix
CVE-2008-1721	High	7.5	23%	-	Fix
CVE-2017-7308	High	7.8	18%	-	Fix
CVE-2022-43663	High	8.1	14%	-	-

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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 2025-08-18.