Deserialization in Microsoft Exchange_server
CVE-2019-1373
A remote code execution vulnerability exists in Microsoft Exchange through the deserialization of metadata via PowerShell, aka 'Microsoft Exchange Remote Code Execution Vulnerability'.
Vulnerability class: Insecure Deserialization
EPSS: 0.182 (96.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Exchange_server — versions 2013, 2016, 2019
- Microsoft Exchange Server 2013 — versions Cumulative Update 23
- Microsoft Exchange Server 2016 — versions Cumulative Update 13
- Microsoft Exchange Server 2016 Cumulative Update 14 — versions unspecified
- Microsoft Exchange Server 2019 — versions Cumulative Update 2
- Microsoft Exchange Server 2019 Cumulative Update 3 — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-1373?
- CVE-2019-1373 is a critical-severity vulnerability in Microsoft Exchange_server, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-11-12.
- How severe is CVE-2019-1373?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-1373 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.