CVE-2023-21778
📛 CVE Title
Microsoft Dynamics Unified Service Desk Remote Code Execution Vulnerability
Description
Microsoft Dynamics Unified Service Desk Remote Code Execution Vulnerability
Overview
- State
- PUBLISHED
- Assigner (CNA)
- microsoft
- CVSS severity
- HIGH
- CVSS score
- 8.0 / 10
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C- Effective score
- 8.0 / 10 HIGH source: CNA overview
- MSRC score
- 8.0 / 10 HIGH MS rating: Important · Remote Code Execution
- CWE(s)
-
CWE-77 - Reserved
- 2022-12-16
- Published
- 2023-02-14 08:00 UTC
- Last updated
- 2023-04-14 07:00 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2023/21xxx/CVE-2023-21778.json
- Linked Threat
- CVE-2023-21778 — Microsoft Dynamics Unified Service Desk Remote Code Execution Vulnerability
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2023-02-14 21:15:11 UTC
- NVD last modified
- 2026-06-17 05:33:57 UTC
- NVD CVSS v3.1
- 8.0 / 10 HIGH source: secure@microsoft.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H- Exploitability subscore
- 1.3 / 10
- Impact subscore
- 6.0 / 10
- EPSS score
- 0.0097 (probability of exploitation in next 30 days)
- EPSS percentile
- 58.36% vs all CVEs — higher = more likely to be exploited, as of 2026-07-31
NVD / KEV / EPSS data refreshed 2026-08-01 09:40 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2023-25945 - Assigner
- microsoft
- Published
- Feb 14, 2023, 8:37:10 PM
- Updated
- Feb 28, 2025, 9:13:39 PM
- EUVD base score (CVSS 3.1)
-
8.0 / 10
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - EUVD-reported EPSS
- 1.5600
- Vendors
- Microsoft
- Products
-
Microsoft Dynamics 365 Unified Service Desk (4.2.0 <4.2.0.51)
- Aliases
-
GHSA-9f7p-38pj-28rv
ENISA description: Microsoft Dynamics Unified Service Desk Remote Code Execution Vulnerability
EUVD references (1)
Microsoft Security Response Center MSRC
Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-08-11 01:49 UTC (source: CVRF).
- MS severity
- Important
- Impact
- Remote Code Execution
- MS CVSS base score
- 8.0 / 10 (temporal 7.0)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Exploit assessment
- Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
- Release
- 2023-Feb
Microsoft remediations / KB articles (1)
- Release Notes — Vendor Fix / Security Update (fixed build 4.2.0.51)
Microsoft FAQ (4)
According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?
In this case, the attack is carried over the webpage but it compromises the web server running the page. In addition, the attacker might be able to call victim's local files in the Resources directory and execute Windows commands that are outside of the Dynamics application.
According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?
The attacker must be authenticated to be able to exploit this vulnerability.
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to take additional actions prior to exploitation to prepare the target environment.
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
Exploitation of the vulnerability requires that a user open a specially crafted file.
- In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file.
- In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability.
An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Microsoft | Microsoft Dynamics 365 Unified Service Desk |
4.2.0 (affected)
|
Unknown |
Affected products — CPE 2.3 (1) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:a:microsoft:dynamics_365:*:*:*:*:unified_service_desk:*:*:*
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (2)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
NVD-tagged references (2)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21778 secure@microsoft.com PatchVendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21778 af854a3a-2127-422b-91ae-364da2661108 PatchVendor Advisory
Remediations (16)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:tuxcare.com
It includes discovering vulnerabilities, evaluating their potential impact, prioritizing remediation efforts (including patching), and confirming the fixes. Patch Management Patch management, on the other hand, is the act of applying the necessary updates to fix known vulnerabilities. It's a critical component of vulnerability management.
2026-06-04 11:44 UTC -
web:learn.microsoft.com
Hotpatch updates streamline the installation process and enhance compliance efficiency. No changes are required to your existing update ring configurations. Your existing ring configurations are honored alongside hotpatch update policies. The Hotpatch quality update report provides a per-policy level view of the current update statuses for all devices that receive hotpatch updates. Hotpatch ...
2026-06-04 11:44 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-06-04 11:44 UTC -
web:www.techtimes.com
What does the Chrome security update released May 19, 2026, fix ? The update brings Chrome to version 148..7778.178/179 and patches 16 vulnerabilities, including two rated Critical.
2026-06-04 11:44 UTC -
web:www.malwarebytes.com
This Chrome update fixes critical flaws attackers could exploit through malicious websites, but not the "Browser Fetch" vulnerability.
2026-06-04 11:44 UTC -
web:support.servicenow.com
Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...
2026-06-04 11:44 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-22 05:46 UTC -
web:www.rapid7.com
Microsoft is publishing 77 vulnerabilities this Patch Tuesday, including two publicly disclosed zero-day vulnerabilities.
2026-05-22 05:46 UTC -
web:www.windowslatest.com
Windows 11 March 2026 Patch Tuesday update adds Emoji 16.0, Sysmon, network speed test, reliability improvements, and security fixes.
2026-05-22 05:46 UTC -
web:cyberpress.org
The third vulnerability, CVE -2026-44791 (GHSA-wrwr-h859-xh2r), is particularly alarming because it represents a patch bypass. It circumvents the previously issued fix for GHSA-hqr4-h3xv-9m3r in the XML node, reintroducing prototype pollution through a different code path. When chained with additional nodes, this too can escalate to RCE on the host.
2026-05-22 05:46 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-05-22 05:46 UTC -
web:cybersecuritynews.com
Microsoft released its March 2026 Patch Tuesday security update on March 10, 2026, addressing 78 vulnerabilities across Windows, Microsoft Office, Azure, SQL Server, and .NET. The update includes one actively exploited zero-day vulnerability and multiple Critical-rated flaws demanding immediate attention from security teams. The most urgent fix this month is CVE -2026-21262, the sole zero-day ...
2026-05-22 05:46 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-22 05:46 UTC -
web:www.bleepingcomputer.com
Today is Microsoft's March 2026 Patch Tuesday with security updates for 79 flaws, including 2 publicly disclosed zero-day vulnerabilities.
2026-05-22 05:46 UTC -
web:www.manageengine.com
Windows Updates on Security Patches Windows updates are important releases like software updates, Windows security patches, Windows patch updates, hotfixes, and security updates done by Microsoft periodically to fix Operating System (Windows 7, 10, Windows Server 2016 etc.) or Windows Software/Application related issues.
2026-05-22 05:46 UTC -
web:www.notebookcheck.net
Microsoft's March 2026 Patch Tuesday fixes 79 flaws, including two publicly disclosed zero-days. Windows 11 gets KB5079473 and KB5078883, while Windows 10 receives KB5078885.
2026-05-22 05:46 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2023-21778.json.
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