Is It On KEV?

Microsoft Exchange Server

YES - ON THE CISA KEV LIST
CVE-2022-41080

Microsoft Exchange Server Privilege Escalation Vulnerability

CISA catalog due date2023-01-31
overdue since 2023-01-31
EPSS exploit probability (next 30 days)77.3% · 100percentile
From CVE publication to KEV listing62 days (2022-11-09 → 2023-01-10)
Remediation window (KEV listing to due date)21 days
Days on the KEV list1401 days
Date added to KEV2023-01-10
Known ransomware campaign useKnown
VendorMicrosoft
ProductExchange Server
Weaknesses (CWE)n/a

Microsoft: 391 entries (22.0% of all KEV entries are from this vendor); 41 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation. This vulnerability is chainable with CVE-2022-41082, which allows for remote code execution.

Required action (CISA)

Apply updates per vendor instructions.

Notes

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-41080; https://nvd.nist.gov/vuln/detail/CVE-2022-41080

References

Other KEV entries for this vendor: Microsoft

Microsoft - Vendors with KEV entries

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