Microsoft Microsoft Exchange Server 2019

Name: Microsoft Microsoft Exchange Server 2019
Brand: Microsoft

productEU

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

by severity

1critical4high8medium0low

updated 2026-10-27

vulnerabilities (13)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2021-26855US	high7.5OT critical	100.0% (100th)	KEV	publication	2021-03-03	15.02.0 → publication
CVE-2021-27065US	medium6.8OT critical	99.9% (100th)	KEV	publication	2021-03-03	15.02.0 → publication
CVE-2021-26857US	medium6.8OT critical	95.8% (100th)	KEV	publication	2021-03-03	15.02.0 → publication
CVE-2021-26858US	medium6.8OT critical	93.7% (100th)	KEV	publication	2021-03-03	15.02.0 → publication
CVE-2019-0724US	high8.1	23.8% (98th)	Exploit	no fix	2019-03-05	≤ Cumulative Update 1
CVE-2019-1373US	critical9.8	21.7% (98th)	—	no fix	2019-11-12	≤ Cumulative Update 2
CVE-2019-1233US	high7.5	6.18% (93rd)	—	no fix	2019-09-11	2 versions
CVE-2019-1084US	medium6.5	5.33% (93rd)	—	no fix	2019-07-15	2 versions
CVE-2019-0686US	high7.4	5.03% (92nd)	—	no fix	2019-03-05	≤ Cumulative Update 1
CVE-2019-0817US	medium5.4	2.29% (83rd)	—	no fix	2019-04-09	≤ Cumulative Update 1
CVE-2019-0858US	medium6.1	2.10% (82nd)	—	no fix	2019-04-09	≤ Cumulative Update 1
CVE-2019-1266US	medium6.1	1.98% (80th)	—	no fix	2019-09-11	2 versions
CVE-2019-1137US	medium5.4	1.58% (75th)	—	no fix	2019-07-15	2 versions

The flaw types (CWEs) most of these CVEs share.

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')3 CVEs
CWE-20Improper Input Validation2 CVEs
CWE-284Improper Access Control2 CVEs
CWE-502Deserialization of Untrusted Data2 CVEs
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer1 CVEs
CWE-19CWE-191 CVEs
CWE-200Exposure of Sensitive Information to an Unauthorized Actor1 CVEs
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')1 CVEs

Which sources assert this record, and when.

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