8.8

CVE-2022-41080: Microsoft Exchange Server Privilege Escalation Vulnerability

CVSS: 8.8v3.1HighKEVRansomwareAnalyzed
Published 09-11-2022Last modified 10-08-2026
Open JSON

Vulnerability summary

CVE-2022-41080 is a high (CVSS 8.8) vulnerability in Microsoft Exchange Server. It is known to be exploited: CISA lists it, first on 10-01-2023. It has been used in ransomware campaigns. EPSS estimates a 77.33% chance of exploitation in the next 30 days, higher than 99.5% of scored vulnerabilities.

Overall risk
90/100
0100
Critical · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
77.33%
0%100%
Critical · 0.00 pp in 30 days
KEVListedCISA
RansomwareKnown useFlagged by CISA
Public exploits0No public exploits recorded

Timeline

  1. 09-11-2022
    PublishedVulnerability first disclosed.
  2. 10-01-2023
    Added to CISA KEVMicrosoft Exchange Server Privilege Escalation Vulnerability
  3. 31-01-2023
    CISA remediation dueApply updates per vendor instructions.
  4. 10-08-2026
    Last modifiedVulnerability information updated.

Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

77.33%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

0.00 pp

From 77.33% on 21-09-2026

21-09-202621-10-2026
EPSS score
77.33%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
10-01-2023
Federal due date
31-01-2023
Ransomware

CISA required action

Apply updates per vendor instructions. msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-41080 nvd.nist.gov/vuln/detail/CVE-2022-41080

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft6 products

1 vendor · 6 products

References

2 links