Remote Code Execution in Microsoft Office (CVE‑2021‑27059) Threatens Enterprise Productivity
What It Is – Microsoft Office contains an unspecified flaw that can be triggered remotely to execute arbitrary code on the victim machine. The vulnerability is tracked as CVE‑2021‑27059.
Exploitability – Publicly disclosed; no known public exploit code, but the remote‑code‑execution nature makes it a high‑severity, actively exploitable risk (CVSS v3.1 ≈ 8.8 High).
Affected Products – All supported versions of Microsoft Office (desktop suite) that have not been patched after the vendor’s security advisory (January 2022).
Why It Matters for Trust & Control Assurance
- Vulnerability Management – Demonstrates the need for a documented, repeatable process to identify, assess, and remediate software flaws before they can be weaponised.
- Audit Readiness – Timely patching provides concrete evidence for control‑objective assessments across SOC 2, ISO 27001, NIST CSF, and other frameworks.
- Defensible Evidence – Continuous collection of patch‑status data creates a verifiable audit trail that satisfies regulators and enterprise buyers demanding proof of a robust security posture.
Recommended Actions
- Verify your inventory of Office installations and confirm the patch released on 2022‑01‑11 is applied.
- If any endpoint remains unpatched, prioritize remediation and document the remediation timeline.
- Enable automated patch‑management tooling that captures evidence of successful deployments for audit purposes.
- Monitor threat‑intel feeds for any emerging exploits targeting this CVE.
Source: CISA KEV – CVE‑2021‑27059