CVE-2022-30190: A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calli
Summary
A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The attacker can then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights. Please see the MSRC Blog Entry for important information about steps you can take to protect your system from this vulnerability.
Why It Matters
HIGH severity — known to be exploited in the wild（CISA KEV）；action required: Apply updates per vendor instructions. .
Current Status
- Vulnerability status: Known exploited (CISA KEV)
- Last intelligence update: 2026-08-06 · source: NVD
- CISA KEV added: 2022-06-14 · remediation deadline: 2022-07-05
Entity Activity Timeline
- 2022-06-14 — Added to CISA KEV as known-exploited · action: Apply updates per vendor instructions.
- 2022-06-01 — NVD publication / disclosure
- 2026-08-06 — Intelligence record updated（NVD sync）
Severity
HIGH
CVSS Score: 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Known Exploited (CISA KEV)
Known Exploited Vulnerability
Added: 2022-06-14 · Remediation deadline: 2022-07-05
Apply updates per vendor instructions.
Source Attribution
Source: NVD · Updated: 2026-08-06T05:16:37.550 · Confidence: high
Impact
Based on CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.
Sources & Evidence
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30190
- http://packetstormsecurity.com/files/167438/Microsoft-Office-Word-MSDTJS-Code-Execution.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-30190
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-30190
Export threat intelligence
Download an OASIS STIX 2.1 threat-intelligence bundle (JSON) for MISP / OpenCTI / TAXII import
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