CVE-2026-65656: Microsoft Office Remote Code Execution Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Microsoft Office allows an unauthorized attacker to execute code locally.
CSIRTS triage
- What
- Command injection in Office allows local code execution by unauthorized attackers.
- Who is affected
- Unauthorized attackers with local access to systems running Microsoft Office.
- Urgency
- High severity (CVSS 7.8) but not currently exploited; remediation should be prioritized.
- Action
- Apply Microsoft security patches for CVE-2026-65656 when available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65656
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-656560.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-65656 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
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