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 (96.5th 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

Weakness classification (CWE)

References

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.