Important CVSS 8 EPSS 0.00776 2022-11 archive

Executive Summary

None

Overview

8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Spoofing
Released Nov 8 2022
Last Updated Nov 8 2022
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00776 — 0.50964 percentile

CVSS Vector

ATTACK VECTOR
Adjacent
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
Temporal Score: 7.0

EPSS Score

0.00776
probability of exploitation in the next 30 days
0.50964 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

5 affected products
Product KB Article Severity Impact Restart Required
Microsoft Exchange Server 2013 Cumulative Update 23 5019758 (Security Update) Important Spoofing Yes
Microsoft Exchange Server 2016 Cumulative Update 22 5019758 (Security Update) Important Spoofing Yes
Microsoft Exchange Server 2016 Cumulative Update 23 5019758 (Security Update) Important Spoofing Yes
Microsoft Exchange Server 2019 Cumulative Update 11 5019758 (Security Update) Important Spoofing Yes
Microsoft Exchange Server 2019 Cumulative Update 12 5019758 (Security Update) Important Spoofing Yes

Patches

1 patch
Article Type Restart
5019758 Security Update Yes

Known Exploits

Acknowledgments

Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative