What is CVE-2019-0586?

CVE-2019-0586 is a critical-severity vulnerability in Microsoft Exchange_server, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-01-08.

How severe is CVE-2019-0586?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Microsoft Exchange_server

CVE-2019-0586

A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka "Microsoft Exchange Memory Corruption Vulnerability." This affects Microsoft Exchange Server.

Vulnerability class: Buffer Overflow

EPSS: 0.154 (96.4th 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 2016, 2019
Microsoft Exchange Server — versions 2016 Cumulative Update 10, 2016 Cumulative Update 11, 2019

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2019-0586?: CVE-2019-0586 is a critical-severity vulnerability in Microsoft Exchange_server, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-01-08.
How severe is CVE-2019-0586?: Critical severity. CVSS v3 base score is 9.8 out of 10.