Is CVE-2023-33131 in the CISA KEV catalog?

No. CVE-2023-33131 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-33131?

CVE-2023-33131 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2023-33131?

CVE-2023-33131 has an EPSS score of 5.72% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-33131?

Install KB5002382 for Microsoft Outlook 2013. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2023-33131

HIGHEPSS 92th pctl

8.8

CVSS v3

NVD

Description

Microsoft Outlook Remote Code Execution Vulnerability

CWE-94Code Injection

How to fix

Remediation Available

Microsoft Outlook 2013Microsoft

Install:KB5002382Microsoft

Microsoft Outlook 2013 RT Service Pack 1Microsoft

Install:KB5002382

Microsoft Outlook 2016Microsoft

Install:KB5002387Microsoft

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

5.72%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Patch1

msrc.microsoft.com

Other references1

packetstormsecurity.com

Related Vulnerabilities

Other CWE-94 (Code Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-9841	Critical	9.8	100%	KEV	Fix
CVE-2015-1635	Critical	9.8	100%	KEV	-
CVE-2022-22954	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-22204	Medium	6.8	100%	KEV	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2012-0158	High	8.8	100%	KEV	-

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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 2025-02-28.