Stack-Based Buffer Overflow in Microsoft Office (CVE‑2010‑3333) Enables Remote Code Execution
What It Is — A stack‑based buffer overflow exists in the Rich Text Format (RTF) parser of Microsoft Office. When crafted RTF data is opened, an attacker can execute arbitrary code in the context of the user.
Exploitability — The vulnerability is publicly disclosed; proof‑of‑concept code is available. No large‑scale exploit reports yet, but the CVSS v3.1 base score is 7.8 (High), indicating a realistic remote‑code‑execution risk.
Affected Products – Microsoft Office (all supported versions that process RTF files, including Office 2007, 2010, 2013, 2016, and Office 365 desktop clients).
Why It Matters for Trust & Control Assurance
- Demonstrates the need for a continuous patch‑management control that can prove timely remediation across the enterprise.
- Provides audit evidence that the organization is actively monitoring vendor advisories (CISA KEV) and applying fixes, a key trust signal for buyers and regulators.
- Highlights the importance of configuration baselines that restrict opening of untrusted RTF files until patches are verified, supporting a defensible security posture.
Recommended Actions
- Verify that the latest security updates for Microsoft Office are deployed on all endpoints.
- Use a control‑mapping tool to capture evidence of patch status and map it to the “Vulnerability Management” control objective.
- Update endpoint hardening policies to block execution of Office macros and RTF files from untrusted sources until remediation is confirmed.
- Monitor for Indicators of Compromise (IoCs) associated with known CVE‑2010‑3333 exploits.
Source: CISA KEV – CVE‑2010‑3333