CVE-2023-36439

highpriority · track · 34EPSS 0.050 · 92 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

4.96% (92nd) EPSS

CVSS 8 · high

Is it mine?

17 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Microsoft Exchange Server Remote Code Execution Vulnerability

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMicrosoft Exchange Server 2016 Cumulative Update 23msrc_csaf
15.01.2507.035:Security Update:https://support.microsoft.com/help/5032147
https://support.microsoft.com/help/5032147
FixedMicrosoft Exchange Server 2019 Cumulative Update 12msrc_csaf
15.02.1118.040:Security Update:https://support.microsoft.com/help/5032146
https://support.microsoft.com/help/5032146
FixedMicrosoft Exchange Server 2019 Cumulative Update 13msrc_csaf
15.02.1258.028:Security Update:https://support.microsoft.com/help/5032146
https://support.microsoft.com/help/5032146

cvss

Technical severity, 0–10. One row per scoring source.

8.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.1 · impact 5.9

v3.18highAV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.18highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 2.1 · impact 5.9

v3.17.3highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18highCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-502USCWE-502US

affected products (17)

Products and version ranges known to be affected.

Microsoft Exchange Server 2016 Cumulative Update 23all versionscert_bundDEcpe:/a:microsoft:exchange_server_2016:cumulative_update_23
Microsoft Exchange Server 2019 Cumulative Update 12all versionscert_bundDEcpe:/a:microsoft:exchange_server_2019:cumulative_update_12
Microsoft Exchange Server 2019 Cumulative Update 13all versionscert_bundDEcpe:/a:microsoft:exchange_server_2019:cumulative_update_13
Microsoft Microsoft Exchange Server 2016 Cumulative Update 2315.01.0 → 15.01.2507.035enisa_euvdEU
Microsoft Microsoft Exchange Server 2019 Cumulative Update 1215.02.0 → 15.02.1118.040enisa_euvdEU
Microsoft Microsoft Exchange Server 2019 Cumulative Update 1315.02.0 → 15.02.1258.028enisa_euvdEU
Microsoft Corp Microsoft Exchange Server≤ 2016 Cumulative Update 23fstec_bduRU
Microsoft Corp Microsoft Exchange Server≤ 2019 Cumulative Update 13fstec_bduRU
Microsoft Corp Microsoft Exchange Server≤ 2019 Cumulative Update 12fstec_bduRU
Microsoft Exchange Server 2016 Cumulative Update 23all versionsfixedmsrc_csafUS
Microsoft Exchange Server 2016 Cumulative Update 23< 15.01.2507.035msrc_csafUS
Microsoft Exchange Server 2019 Cumulative Update 12all versionsfixedmsrc_csafUS
Microsoft Exchange Server 2019 Cumulative Update 12< 15.02.1118.040msrc_csafUS
Microsoft Exchange Server 2019 Cumulative Update 13all versionsfixedmsrc_csafUS
Microsoft Exchange Server 2019 Cumulative Update 13< 15.02.1258.028msrc_csafUS
microsoft exchange server= 2016nvdUScpe:2.3:a:microsoft:exchange_server:*:*:*:*:*:*:*:*
microsoft exchange server= 2019nvdUScpe:2.3:a:microsoft:exchange_server:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2894Microsoft Exchange Server: Mehrere SchwachstellenDeutsch2023-11-14csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Microsoft Exchange Server 2016 und Microsoft Exchange Server 2019 ausnutzen, um Dateien zu manipulieren oder beliebigen Programmcode auszuführen.
msrc_CVE-2023-36439Microsoft Exchange Server Remote Code Execution Vulnerability2023-11-14csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund msrc_csaf nvd NVD CVE.org MITRE

published 2023-11-14modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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