7.8

CVE-2022-41033: Microsoft Windows COM+ Event System Service Privilege Escalation Vulnerability

CVSS: 7.8v3.1HighKEVAnalyzed
Published 11-10-2022Last modified 12-01-2026
Open JSON

Vulnerability summary

CVE-2022-41033 is a high (CVSS 7.8) Type Confusion vulnerability in Microsoft Windows COM+ Event System Service. It is known to be exploited: CISA lists it, first on 11-10-2022. EPSS estimates a 1.89% chance of exploitation in the next 30 days, higher than 79.2% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.89%
0%100%
Low · +0.20 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-10-2022
    PublishedVulnerability first disclosed.
  2. 11-10-2022
    Added to CISA KEVMicrosoft Windows COM+ Event System Service Privilege Escalation Vulnerability
  3. 01-11-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 12-01-2026
    Last modifiedVulnerability information updated.

Description

Windows COM+ Event System Service Elevation of Privilege Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.89%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

+0.20 pp

From 1.68% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.89%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
11-10-2022
Federal due date
01-11-2022

CISA required action

Apply updates per vendor instructions. msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-41033 nvd.nist.gov/vuln/detail/CVE-2022-41033

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft35 products

1 vendor · 35 products

References

3 links