Microsoft Exchange Server Information Disclosure Vulnerability
Description
Microsoft Exchange Server contains an information disclosure vulnerability that allows for remote code execution.
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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Details
- Vendor
- Microsoft
- Product
- Exchange Server
- CVE
- CVE-2021-31196
- Affected versions
- Microsoft Exchange Server 2013 Cumulative Update 23 15.00: from 15.00.0 to 15.00.1497.023 (excluded) — fixed in 15.00.1497.023
Microsoft Exchange Server 2016 Cumulative Update 20 15.01: from 15.01.0 to 15.01.2242.012 (excluded) — fixed in 15.01.2242.012
Microsoft Exchange Server 2016 Cumulative Update 21 15.01: from 15.01.0 to 15.01.2308.014 (excluded) — fixed in 15.01.2308.014
Microsoft Exchange Server 2019 Cumulative Update 10 15.02: from 15.02.0 to 15.02.0922.013 (excluded) — fixed in 15.02.0922.013
Microsoft Exchange Server 2019 Cumulative Update 9 15.02: from 15.02.0 to 15.02.0858.015 (excluded) — fixed in 15.02.0858.015 (from the advisory and NVD; check the exact builds in the official advisory) - CVSS score
- 7.2
- Actively exploited
- Yes, listed in the CISA Known Exploited Vulnerabilities catalog
- CISA due date
- September 11, 2024 (deadline for US federal agencies: a good benchmark for you too)
- Source
- CISA KEV – original advisory
- Published
- August 21, 2024
The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.