4.8

CVE-2022-21979: microsoft exchange_server

CVSS: 4.8v3.1MediumModified
Published 09-08-2022Last modified 02-01-2025
Open JSON

Vulnerability summary

CVE-2022-21979 is a medium (CVSS 4.8) vulnerability in microsoft exchange_server. EPSS estimates a 2.16% chance of exploitation in the next 30 days, higher than 81.9% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
2.16%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 09-08-2022
    PublishedVulnerability first disclosed.
  2. 02-01-2025
    Last modifiedVulnerability information updated.

Description

Microsoft Exchange Server Information Disclosure Vulnerability

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

2.16%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

+0.04 pp

From 2.11% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

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

1 links