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CVE record · CVE-2022-41040

Microsoft Exchange Server Elevation of Privilege Vulnerability

CVSS 8.8 HighCriticalIn CISA KEV · ransomwareEPSS 1.00 · 99th percentile

Critical, because:

  • In CISA’s KEV catalogue since 30 Sept 2022: it is known to be exploited.
  • CVSS score 8.8 (7.0 or more) and EPSS 1.00 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: microsoft) at 3 Oct 2022, 00:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Microsoft Microsoft Exchange Server 2013 Cumulative Update 23
  • affected 15.00.0 to before 15.00.1497.044 custom
Microsoft Microsoft Exchange Server 2016 Cumulative Update 22
  • affected 15.0.0 to before 15.01.2375.037 custom
Microsoft Microsoft Exchange Server 2019 Cumulative Update 11
  • affected 15.02.0 to before 15.02.0986.036 custom
Microsoft Microsoft Exchange Server 2019 Cumulative Update 12
  • affected 15.02.0 to before 15.02.1118.020 custom
Microsoft Microsoft Exchange Server 2016 Cumulative Update 23
  • affected 15.01.0 to before 15.01.2507.016 custom
Identifiers
CVE-2022-41040
CNA
microsoft
Weakness (CWE)
CWE-918
Tags
Published
3 Oct 2022
Updated
21 Oct 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C CNA (microsoft)
  • CISA KEV Listed since 30 Sept 2022: known to be exploited. CISA reports use in ransomware campaigns.
  • EPSS 1.00, the 99th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 3 Oct 2022. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.