Security readout for executives and security teams
Plain-English summary
This is a Microsoft Word remote code execution flaw. A successful attack could let code run in the context of a user who opens a malicious Word document. The provided evidence rates impact as high, but it does not show active exploitation.
Executive priority
Treat as a high-priority workstation patching issue, especially for teams handling external documents. It is serious, but the provided evidence does not justify emergency exploited-in-the-wild language.
Technical view
CVE-2021-36941 affects Microsoft Word through listed Microsoft Office 2019 for Mac and Microsoft 365 Apps for Enterprise entries. CVSS 3.1 is 7.8 with local attack vector, low complexity, no privileges required, and user interaction required. Confidentiality, integrity, and availability impacts are high.
Likely exposure
Organizations are most exposed where users run affected Microsoft Office or Microsoft 365 Apps builds and regularly receive Word files from email, web downloads, or external collaboration channels.
Exploitation context
The source bundle does not list CISA KEV status and provides no cited evidence of active exploitation. Exploitation requires user interaction, such as opening a crafted Word document.
Researcher notes
The CVSS vector indicates user-assisted local exploitation of Word with no prior privileges and high CIA impact. Public source data here is sparse: no CWE, no technical root cause, and no exploit evidence are provided.
Mitigation direction
- Review the MSRC advisory for the vendor-listed fixed builds and update guidance.
- Deploy Microsoft Office and Microsoft 365 Apps security updates to affected endpoints.
- Move affected installations onto supported, current Office update channels.
- Use attachment filtering and protected-view controls for untrusted Word documents.
- Prioritize high-risk users who routinely handle external documents.
Validation and detection
- Inventory Microsoft Office 2019 for Mac and Microsoft 365 Apps versions across endpoints.
- Compare installed builds with the affected and fixed build data in MSRC guidance.
- Confirm Office update policies are successfully applying security updates.
- Review email and endpoint telemetry for suspicious Word document handling.
- Validate that untrusted Office documents open with hardened protections enabled.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-36941 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36941CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.