SARA / Free Tools / CVE / CVE-2022-30134

CVE-2022-30134 — Microsoft Exchange Server Information Disclosure Vulnerability

Microsoft Exchange Server Information Disclosure Vulnerability

CVSS

6.5 MEDIUM

EPSS

3.04% (top 13.50%)

CWE

—

Published

2022-08-09T19:48:24.000Z

Last modified

2025-01-02T19:34:21.182Z

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

01What is this vulnerability?

Microsoft Exchange Server Information Disclosure Vulnerability

Vendor	Product	Versions
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 12	15.02.0
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 23	15.01.0
Microsoft	Microsoft Exchange Server 2013 Cumulative Update 23	15.00.0
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 22	15.0.0
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 11	15.02.0

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

msrc.microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30134

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