Microsoft Microsoft Exchange Server 2016 Cumulative Update 19

Name: Microsoft Microsoft Exchange Server 2016 Cumulative Update 19
Brand: Microsoft

productEU

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

unpatched

critical

by severity

0critical7high12medium0low

updated 2026-10-27

vulnerabilities (19)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2021-34473US	high10.0OT critical	100.0% (100th)	KEV	15.01.2176.012	2021-07-14	15.01.0 → 15.01.2176.012
CVE-2021-26855US	high7.5OT critical	100.0% (100th)	KEV	publication	2021-03-03	15.01.0 → publication
CVE-2021-34523US	high7.5OT critical	100.0% (100th)	KEV	15.01.2176.012	2021-07-14	15.01.0 → 15.01.2176.012
CVE-2021-27065US	medium6.8OT critical	99.9% (100th)	KEV	publication	2021-03-03	15.01.0 → publication
CVE-2021-31207US	medium6.5OT critical	99.8% (100th)	KEV	15.01.2176.014	2021-05-11	15.01.0 → 15.01.2176.014
CVE-2021-33766US	medium5.0OT critical	98.2% (100th)	KEV	15.01.2176.012	2021-07-14	15.01.0 → 15.01.2176.012
CVE-2021-26857US	medium6.8OT critical	95.8% (100th)	KEV	publication	2021-03-03	15.01.0 → publication
CVE-2021-26858US	medium6.8OT critical	93.7% (100th)	KEV	publication	2021-03-03	15.01.0 → publication
CVE-2021-28482US	high9.0	83.2% (100th)	Exploit	15.01.2176.012	2021-04-13	15.01.0 → 15.01.2176.012
CVE-2021-28480US	high10.0	71.2% (99th)	Exploit	15.01.2176.012	2021-04-13	15.01.0 → 15.01.2176.012
CVE-2021-24085US	medium6.0	4.63% (92nd)	Exploit	publication	2021-02-25	15.01.0 → publication
CVE-2021-31195US	medium6.8	73.7% (99th)	—	15.01.2176.014	2021-05-11	15.01.0 → 15.01.2176.014
CVE-2021-28481US	high10.0	36.2% (98th)	—	15.01.2176.012	2021-04-13	15.01.0 → 15.01.2176.012
CVE-2021-26412US	medium6.5	33.8% (98th)	—	publication	2021-03-03	15.01.0 → publication
CVE-2021-26854US	medium6.5	24.7% (98th)	—	publication	2021-03-03	15.01.0 → publication
CVE-2021-27078US	medium6.5	21.6% (98th)	—	publication	2021-03-03	15.01.0 → publication
CVE-2021-31198US	medium6.8	4.87% (92nd)	—	15.01.2176.014	2021-05-11	15.01.0 → 15.01.2176.014
CVE-2021-31209US	medium5.8	2.63% (85th)	—	15.01.2176.014	2021-05-11	15.01.0 → 15.01.2176.014
CVE-2021-28483US	high7.7	1.20% (68th)	—	15.01.2176.012	2021-04-13	15.01.0 → 15.01.2176.012

weaknesses (8)

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

CWE-94Improper Control of Generation of Code ('Code Injection')7 CVEs
CWE-20Improper Input Validation6 CVEs
CWE-254CWE-2542 CVEs
CWE-290Authentication Bypass by Spoofing2 CVEs
CWE-918Server-Side Request Forgery (SSRF)2 CVEs
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')1 CVEs
CWE-264CWE-2641 CVEs
CWE-287Improper Authentication1 CVEs

sources (1)

Which sources assert this record, and when.

EUEU Vulnerability Database (ENISA)19 CVEs

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